5/16" Washers
Last Updated: February 12, 2025
Description
5/16" washers are small, circular components with a central hole designed to fit around a bolt or screw. They serve to distribute the load of a fastener, providing a larger surface area to prevent damage to the material being fastened. This helps to ensure a secure and stable connection between components.
Working Principle
Washers work by providing a stable base for fasteners, which helps to evenly distribute the load and reduce the risk of damage to the surfaces being joined. This is particularly important in applications where the materials are soft or prone to deformation. The washer's design helps to prevent the fastener from loosening over time due to vibrations or other dynamic forces. In the case of spring washers, their unique profile allows them to compress and provide a proportionate resistance, maintaining tension and absorbing shock loads .
Applications
5/16" washers are commonly used in a variety of applications, including automotive, construction, and machinery assembly. For example, they are often employed in the assembly of engine components where maintaining tension and preventing loosening due to vibration is critical. They are also used in construction to secure structural elements, ensuring that the load is evenly distributed across the materials .
Advantages over other Washers
Flat washers, such as the 5/16" size, offer the advantage of a larger surface area for better load distribution compared to other types of washers. This makes them ideal for applications where the material being fastened is soft or prone to damage. Additionally, spring washers provide the benefit of maintaining tension and absorbing shock loads, which is particularly useful in dynamic environments .
Limitations
One limitation of 5/16" washers is that they may not be suitable for applications requiring high load-bearing capacity. In such cases, structural washers or other heavy-duty options might be more appropriate. Additionally, flat washers do not provide the same level of vibration resistance as lock washers, which can be a drawback in environments with high levels of vibration .
Considerations
When selecting 5/16" washers, it is important to consider factors such as initial cost, operating expenses, and durability. Flat washers are generally cost-effective and durable, making them a popular choice for many applications. However, the specific material and thickness of the washer should be chosen based on the requirements of the application to ensure optimal performance and longevity. Maintenance costs are typically low, but regular inspections may be necessary to ensure that the washers remain in good condition and continue to provide the desired level of performance .
from National Bolt & Nut Corporation
HELICAL SPRING LOCK WASHERS. Helical spring lock washers possess a hardened bearing surface that allows for more uniform torque control, and harness greater bolt tension per unit of applied torque. Helical spring lock washers are one of the most common anti-loosening components used for a great... [See More]
- Number Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 9/16"; 5/8"; 3/4"; 7/8"; 1"; 1-1/8"; 1-14"; 1-3/8"; 1-1/2"; 1-5/8"; 1-3/4"; 2"
- Material: HardenedSteel
- Washer Type: Lockwasher, Helical Spring
- Finish: ZincPlated (optional feature); ZincChromate (optional feature); Plain
from APM Hexseal Corp.
SEELOC ® Washers are self-sealing, vibration-resistant washers, each having a silicone rubber section, molded and bonded to a stainless steel formed washer. These washers are designed for use with regular screws, bolts, or studs for sealing panels and enclosures having standard as well as large... [See More]
- Number Size: 5/16"
- Outside Diameter: 1.000
- Washer Type: Self-sealing
- Material: StainlessSteel; Rubber
from Jergens, Inc.
Jergens Flat Washers incorporate spacing and distribute load when placed between a nut and bolt or screw. They will help prevent wear and distortion of installation surfaces over time. Features, Benefits, & Product Specifications: Material: Available in 1010 Cold Rolled Steel and 303 Stainless... [See More]
- Number Size: 5/16"
- Material: Steel; StainlessSteel; Available in 1010 Cold Rolled Steel and 303 Stainless Steel
- Washer Type: Flat or USS
- Finish: BlackOxide
from ZAGO Manufacturing Company, Inc.
Environmental elements can easily make their way into the inner parts of sensitive electronic devices. However, with ZAGO ’s panel bushing seals, you can control potential leaks with the most easy to use and economical product on the market. ZAGO ’s panel bushing seals are composed of a... [See More]
- Number Size: No. 0; No. 1; No. 2; No. 4; No. 6; No. 8; No. 10; No. 12; 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 5/8"; 3/4"
- Metric Size: M1.6; M2.0; M2.5; M3; M3.5; M4; M5; M6; M8; M10; M12; M14; M16; M20; M24; M30
- Washer Type: Self-sealing
- Material: Steel; StainlessSteel
from RS Components, Ltd.
5/16" SAE Flat Washer Steel Zinc Plated [See More]
- Number Size: 5/16"
- Inside Diameter: 0.339
- Washer Type: Plain
- Outside Diameter: 0.681
from Stock Drive Products & Sterling Instrument - SDP/SI
Industrial fasteners are hardware devices that join two or more items together, creating a semi-permanent or permanent connection. The fasteners most frequently used by machinery designers are screws, nuts, retaining rings, and various types of pins because of the basic role that they play in the... [See More]
- Number Size: 5/16"
- Inside Diameter: 0.322
- Washer Type: Lockwasher, Helical Spring
- Outside Diameter: 0.583
from National Bolt & Nut Corporation
SAE FLAT WASHERS. National Bolt & Nut offers a series of type A, narrow SAE flat washers that meet ANSI B18.22.1 dimensional specifications. Similar in style to USS flat washers, SAE flat washers are constructed from thinner materials and offer a smaller inner and outer diameter than their USS... [See More]
- Number Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 9/16"; 5/8"; 3/4"; 7/8"; 1"; 1-1/8"; 1-14"; 1-1/2"
- Material: HardenedSteel
- Washer Type: SAE
- Finish: ZincPlated (optional feature); ZincChromate (optional feature); Plain
from Jergens, Inc.
Jergens Heavy Duty Flat USAE ™ Washers are a simple but effective idea that is long overdue. The outside diameter conforms to USS standards and the inside diameter conforms to SAE standards. The small inside diameter provides a more precise fit on bolts, studs, etc. These washers are up to 37%... [See More]
- Number Size: 5/16"
- Inside Diameter: 0.344
- Washer Type: Flat or USS
- Outside Diameter: 0.875
from RS Components, Ltd.
5/16" USS Mega Thick (.090/.110) Flat Wa [See More]
- Number Size: 5/16"
- Inside Diameter: 0.307
- Washer Type: Plain
- Outside Diameter: 0.882
from Stock Drive Products & Sterling Instrument - SDP/SI
Industrial fasteners are hardware devices that join two or more items together, creating a semi-permanent or permanent connection. The fasteners most frequently used by machinery designers are screws, nuts, retaining rings, and various types of pins because of the basic role that they play in the... [See More]
- Number Size: 5/16"
- Outside Diameter: 0.594
- Washer Type: Lockwasher, Internal Tooth
- Thickness: 0.030
from National Bolt & Nut Corporation
USS FLAT WASHERS. One of the most common types of flat washers, National Bolt & Nut ’s Type A wide series USS flat washers possess a flat bearing surface underneath the fastener that more evenly distributes pressure. Designed to meet most industrial applications, ranging from maintenance... [See More]
- Number Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 9/16"; 5/8"; 3/4"; 7/8"; 1"; 1-1/8"; 1-14"; 1-3/8"; 1-1/2"; 1-5/8"; 1-3/4"; 1-7/8"; 2"
- Material: HardenedSteel
- Washer Type: Flat or USS
- Finish: ZincPlated (optional feature); ZincChromate (optional feature); Plain
from Jergens, Inc.
Jergens Heavy Duty Flat Washers are made from high-carbon through-hardened steel, which makes them up to 50% stronger than standard heavy-duty washers. Also more fracture-resistant under heavy loads. Features, Benefits, & Product Specifications: Material: High Carbon Steel. Finish: Black Oxide. [See More]
- Number Size: 5/16"
- Material: Steel; High Carbon Steel
- Washer Type: Flat or USS
- Finish: BlackOxide
from RS Components, Ltd.
5/16" USS Thru Hardened Flat Washer Zinc [See More]
- Number Size: 5/16"
- Inside Diameter: 0.370
- Washer Type: Plain
- Outside Diameter: 0.882
from Jergens, Inc.
Jergens Heavy Duty Square Washers incorporate spacing and distribute load when placed between a nut and bolt or screw. They will help prevent wear and distortion of installation surfaces over time. Features, Benefits, & Product Specifications: Material: 1018 Steel. Finish: Black Oxide. Heat... [See More]
- Number Size: 5/16"
- Thickness: 0.188
- Washer Type: Square or Rectangle
- Material: Steel; 1018 Steel
from RS Components, Ltd.
5/16" Countersunk Steel Finishing Washer [See More]
- Number Size: 5/16"
- Inside Diameter: 0.864
- Washer Type: Countersunk or Finishing; Countersunk
- Outside Diameter: 0.373
from Jergens, Inc.
Self Aligning Washers (2 Piece). Jergens Self Aligning Washers are ideally suited for joining machine sections that are out of parallel. They adjust themselves for a positive, firm base. With radius “E ” and the angular 14 ° combination, line contact is formed around the two mating... [See More]
- Number Size: 5/16"
- Finish: BlackOxide
- Material: Steel; StainlessSteel; Available in Low Carbon Steel and 303 Stainless Steel
from Minerallac Company
NON SERRATED TYPE. SPRING STEEL MATERIAL. LOAD RATING 1682 LB. PACKAGING QUANTITY 100 PIECES PER CARDBOARD BO. FASTENER SIZE 5/16 INCH [See More]
- Number Size: 5/16"
- Material: Spring Steel
- Washer Type: Belleville
from Bayou City Bolt & Supply Co., Inc.
A nut is a type of fastener with a threaded hole. Nuts are almost always used opposite a mating bolt to fasten parts together. The two components work together by a combination of friction between the threads, a slight stretch of the bolt, and compression of the mating parts. Nuts are graded with... [See More]
- Number Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 9/16"; 5/8"; 3/4"; 7/8"; 1"; 1-1/8"; 1-14"; 1-1/2"
- Inside Diameter: 0.260 to 1.534
- Washer Type: Lockwasher, External Tooth; Lockwasher, Helical Spring; Lockwasher, Internal Tooth
- Outside Diameter: 0.363 to 2.159
from PENCOM
Custom sizes/other finishes available [See More]
- Number Size: 5/16"
- Inside Diameter: 0.320 to 0.332
- Washer Type: Lockwasher, External Tooth
- Outside Diameter: 0.588 to 0.610
from Ebinger Manufacturing Corp.
ZINC PLATED FINISH. 5/16 INCH FASTENER SIZE. STANDARD PACKAGING QUANTITY 50 [See More]
- Number Size: 5/16"
- Finish: ZincPlated
- Washer Type: Fender
from Te-Co, Inc.
Product Information. Black Oxide Finish: steel washers only. Case Hardened: steel washers only. Material: C1010 Steel or 303 Stainless Steel. Many sizes conform to TCMAI standards. Large Quantities quoted upon request. Metric dimensions in millimeters. Standard package quantity 42600-42609: 50 pcs. [See More]
- Number Size: 5/16"
- Inside Diameter: 0.312
- Washer Type: Flat or USS
- Material: HardenedSteel
from Peco Fasteners, Inc.
APPLICABLE STANDARD SAE. FASTENER SIZE 5/16 INCH. FINISH/COATING ZINC PLATED. TYPE ROUND. COLOR YELLOW. PACKAGE QUANTITY 100 PIECES [See More]
- Number Size: 5/16"
- Finish: ZincPlated
- Washer Type: Flat or USS
from NSI Industries LLC
SPLIT TYPE. SILICON BRONZE MATERIAL. 5/16 INCH FASTENER SIZE. PACKAGING QUANTITY 25 PER CARTON. SLW MODEL [See More]
- Number Size: 5/16"
- Material: Silicon Bronze
from American Belleville
American Belleville washers hold your bolted joint tight in the face of the most extreme cases of differential thermal expansion/contractionn, bolt creep and vibration that threaten the integrity of the joint. We specialize in high-temperature applications and the most corrosive environments where... [See More]
- Number Size: 5/16"
- Inside Diameter: 0.317
- Washer Type: Belleville
- Outside Diameter: 0.630
from NBS Corp.
Featuring external teeth to provide secure locking, all NBS external tooth lock washers are sourced exclusively from ISO-9001 accredited manufacturers. Available from #4 through 5/16 ” diameter, all external tooth lock washers come with zinc finish. [See More]
- Number Size: 5/16"
- Material: Steel
- Washer Type: Lockwasher, External Tooth
- Finish: ZincPlated
from L.H. Dottie Company
ROUND TYPE. STEEL MATERIAL. ZINC PLATED FINISH. 3/8 INCH INNER DIAMETER. 7/8 INCH OUTER DIAMETER. 1/16 INCH THICKNESS. 5/16 INCH FASTENER SIZE. CONSTRUCTIONAL FEATURE CORROSION RESISTANT. PC 4110 MODEL [See More]
- Number Size: 5/16"
- Inside Diameter: 0.375
- Washer Type: Flat or USS
- Outside Diameter: 0.875
from Fastener SuperStore, Inc.
5/16 X 3/4 Fender Washers / 316 Stainless Steel. A flat washer with significantly more surface area than a USS or SAE washer. They are also made from a thinner gauge metal than most flat washers. Used where an extra wide bearing surface is required. Originally designed for auto body repair work,... [See More]
- Number Size: 5/16"
- Inside Diameter: 0.344
- Washer Type: Fender
- Outside Diameter: 0.750
from Atkore International
SPLIT TYPE. ELECTROGALVANIZED FINISH. 5/16 INCH FASTENER SIZE. UNISTRUT. BRAND. WEIGHT 0.41 LB PER 100 PIECE. STANDARDS AND SPECIFICATIONS FINISH ASTM B633 TYPE III SCI [See More]
- Number Size: 5/16"
- Finish: Galvanized
- Washer Type: Lockwasher, Helical Spring
from G.L. Huyett
Flat washers are available in a wide range of sizes, finishes, and materials. They provide surface protection by distributing pressure evenly over the part being secured, prevent pullout of fasteners, and relieve surface friction to prevent loosening when fastening uneven surfaces. [See More]
- Number Size: No. 8; No. 10; 1/4"; 5/16"; 3/8"; 1/2"
- Material: StainlessSteel; Carbon Steel
- Washer Type: Flat or USS
- Finish: ZincPlated
from ASRaymond
Stock sizes in high-carbon and stainless steels. Belleville spring washers are especially suited for high loads in small spaces. By combining them in varying sequence, each size gives numerous load-carrying possibilities. These washers have had all set removed during manufacture. Material. Spring... [See More]
- Number Size: 5/16"
- Inside Diameter: 0.317
- Washer Type: Belleville
- Outside Diameter: 0.625
from Minerallac Company
ROUND TYPE. STEEL MATERIAL. ZINC PLATED FINISH. 0.359 INCH INNER DIAMETER. 0.703 INCH OUTER DIAMETER. 0.08 INCH THICKNESS. 5/16 INCH FASTENER SIZE. COLOR SILVER. PACKAGING QUANTITY 100 PER BOX [See More]
- Number Size: 5/16"
- Inside Diameter: 0.359
- Washer Type: Flat or USS
- Outside Diameter: 0.703
from Ebinger Manufacturing Corp.
FASTENER SIZE 5/16 INCH. FINISH/COATING ZINC PLATED. TYPE ROUND. STANDARD PACKAGING QUANTITY 100 [See More]
- Number Size: 5/16"
- Finish: ZincPlated
- Washer Type: Flat or USS
from Te-Co, Inc.
Product Information. Black Oxide Finish. Case Hardened. C1010 Material. Large Quantities quoted upon request. Standard package quantity 42619-42626: 50 pcs. [See More]
- Number Size: 5/16"
- Inside Diameter: 0.312
- Washer Type: Flat or USS
- Material: HardenedSteel
from Peco Fasteners, Inc.
APPLICABLE STANDARD USS. FASTENER SIZE 5/16 INCH. FINISH/COATING ZINC PLATED. TYPE ROUND. COLOR YELLOW. PACKAGE QUANTITY 100 PIECES [See More]
- Number Size: 5/16"
- Finish: ZincPlated
- Washer Type: Flat or USS
from NBS Corp.
Featuring internal teeth to provide secure locking, all NBS internal tooth lock washers are sourced exclusively from ISO-9001 accredited manufacturers. Available from #4 through 3/8 ” internal diameter, all internal tooth lock washers come with zinc finish. [See More]
- Number Size: 5/16"
- Material: Steel
- Washer Type: Lockwasher, Internal Tooth
- Finish: ZincPlated
from L.H. Dottie Company
ROUND TYPE. SILICON BRONZE MATERIAL. 3/8 INCH INNER DIAMETER. 7/8 INCH OUTER DIAMETER. 5/64 INCH THICKNESS. 5/16 INCH FASTENER SIZE. FW MODEL [See More]
- Number Size: 5/16"
- Inside Diameter: 0.375
- Washer Type: Flat or USS
- Outside Diameter: 0.875
from Fastener SuperStore, Inc.
5/16 (AN960-516) Military Machine Screw Washer / AN Standard / Steel / Cadmium Yellow. Tested & Certified to Military Standards. [See More]
- Number Size: 5/16"
- Material: Steel
- Washer Type: Flat or USS; Military Machine Screw Washer
- Finish: Cadmium Yellow
from ASRaymond
Stock Sizes in stainless steel and carbon steel. Clover ®Dome spring washers are well suited for applications where a Belleville washer or disc spring does not provide adequate deflection, or where the load obtained from a wave washer is not sufficient for the application. By combining washers... [See More]
- Number Size: 5/16"
- Inside Diameter: 0.317
- Washer Type: Clover Dome™
- Outside Diameter: 0.625
from Minerallac Company
ROUND TYPE. SILICON BRONZE MATERIAL. 3/8 INCH INNER DIAMETER. 7/8 INCH OUTER DIAMETER. 14 GAUGE THICKNESS. 5/16 INCH FASTENER SIZE. COLOR COPPER. PACKAGING QUANTITY 100 PER BOX [See More]
- Number Size: 5/16"
- Inside Diameter: 0.375
- Washer Type: Flat or USS
- Outside Diameter: 0.875
from Te-Co, Inc.
Product Information. Material: 303 Stainless Steel. Reduces stress on threads. Bottom Washer can be used with Spherical Flange Nuts. Compensates for slight misalignment between the workpiece and strap clamp. Many sizes conform to TCMAI standards. Special sizes quoted upon request [See More]
- Number Size: 5/16"; 3/8"
- Inside Diameter: 0.312 to 0.375
- Washer Type: Spherical
- Material: StainlessSteel
from Peco Fasteners, Inc.
FASTENER SIZE 5/16 INCH. FINISH/COATING HOT DIP GALVANIZED. TYPE ROUND. PACKAGE QUANTITY 50 PIECES [See More]
- Number Size: 5/16"
- Finish: Galvanized
- Washer Type: Flat or USS
from NBS Corp.
Featuring a split ring and bent into a helical shape, all NBS medium split lock washers are sourced exclusively from ISO-9001 accredited manufacturers. Available from #6 through ¾ ” internal diameter, all medium split lock washers come with zinc finish. [See More]
- Number Size: 5/16"
- Material: Steel
- Washer Type: Lockwasher, Helical Spring
- Finish: ZincPlated
from L.H. Dottie Company
ROUND TYPE. HARD ALLOY MATERIAL. ZINC PLATED FINISH. 3/8 INCH INNER DIAMETER. 7/8 INCH OUTER DIAMETER. 5/64 INCH THICKNESS. 5/16 INCH FASTENER SIZE. FW MODEL [See More]
- Number Size: 5/16"
- Inside Diameter: 0.375
- Washer Type: Flat or USS
- Outside Diameter: 0.875
from Minerallac Company
ROUND TYPE. 18-8 STAINLESS STEEL MATERIAL. STAINLESS FINISH. 0.359 INCH INNER DIAMETER. 0.703 INCH OUTER DIAMETER. 0.08 INCH THICKNESS. 5/16 INCH FASTENER SIZE. COLOR SILVER. PACKAGING QUANTITY 100 PER BOX [See More]
- Number Size: 5/16"
- Inside Diameter: 0.359
- Washer Type: Flat or USS
- Outside Diameter: 0.703
from Te-Co, Inc.
Product Information. Material: 303 Stainless Steel. Reduces stress on threads. Bottom Washer can be used with Spherical Flange Nuts. Compensates for slight misalignment between the workpiece and strap clamp. Many sizes conform to TCMAI standards. Special sizes quoted upon request [See More]
- Number Size: 5/16"; 3/8"
- Inside Diameter: 0.312 to 0.375
- Washer Type: Spherical
- Material: StainlessSteel
from Peco Fasteners, Inc.
FASTENER SIZE 5/16 INCH. MATERIAL SILICON BRONZE. TYPE ROUND. PACKAGE QUANTITY 100 PIECES [See More]
- Number Size: 5/16"
- Material: Brass
- Washer Type: Flat or USS
from NBS Corp.
Compatible with fine thread nuts and bolts, all NBS SAE flat washers are sourced exclusively from ISO-9001 accredited manufacturers. Available from #4 through 1 ” internal diameter, all SAE flat washers come with zinc finish. [See More]
- Number Size: 5/16"
- Material: Steel
- Washer Type: Flat or USS
- Finish: ZincPlated
from L.H. Dottie Company
ROUND TYPE. STAINLESS STEEL MATERIAL. 3/8 INCH INNER DIAMETER. 7/8 INCH OUTER DIAMETER. 5/64 INCH THICKNESS. 5/16 INCH FASTENER SIZE. FW MODEL [See More]
- Number Size: 5/16"
- Inside Diameter: 0.375
- Washer Type: Flat or USS
- Outside Diameter: 0.875
from Minerallac Company
INNER DIAMETER 5/16 INCH. INNER DIAMETER - DECIMAL .3125. INNER DIAMETER - DECIMAL - UOM IN. INNER DIAMETER - FRACTIONAL 5/16. MATERIAL BRASS. TYPE ROUND. PACKAGING TYPE CARDBOARD BOX. PACKAGING QUANTITY 100 PER BOX [See More]
- Number Size: 5/16"
- Inside Diameter: 0.312
- Washer Type: Flat or USS
- Material: Brass
from Te-Co, Inc.
Product Information. Material: 303 Stainless Steel. Reduces stress on threads. Bottom Washer can be used with Spherical Flange Nuts. Compensates for slight misalignment between the workpiece and strap clamp. Many sizes conform to TCMAI standards. Special sizes quoted upon request [See More]
- Number Size: 5/16"; 3/8"
- Inside Diameter: 0.312 to 0.375
- Washer Type: Spherical
- Material: StainlessSteel
from Peco Fasteners, Inc.
FASTENER SIZE 5/16 INCH. MATERIAL STAINLESS STEEL. TYPE ROUND. PACKAGE QUANTITY 100 PIECES [See More]
- Number Size: 5/16"
- Material: StainlessSteel
- Washer Type: Flat or USS
from NBS Corp.
Compatible with coarse thread nuts and bolts, all NBS USS flat washers are sourced exclusively from ISO-9001 accredited manufacturers. Available from 3/16 ” through 1 ” internal diameter, all USS flat washers come with zinc finish. [See More]
- Number Size: 5/16"
- Material: Steel
- Washer Type: Flat or USS
- Finish: ZincPlated
from L.H. Dottie Company
FASTENER SIZE 5/16 INCH. INNER DIAMETER 3/8 INCH. INNER DIAMETER - DECIMAL .375. INNER DIAMETER - DECIMAL - UOM IN. INNER DIAMETER - FRACTIONAL 3/8. MATERIAL SOLID BRASS. OUTER DIAMETER 7/8 INCH. OUTER DIAMETER - DECIMAL .875. OUTER DIAMETER - DECIMAL - UOM IN. OUTER DIAMETER - FRACTIONAL 7/8. [See More]
- Number Size: 5/16"
- Inside Diameter: 0.375
- Washer Type: Flat or USS
- Outside Diameter: 0.875
from Minerallac Company
INTERNAL TOOTH TYPE. 5/16 INCH FASTENER SIZE. PACKAGING QUANTITY 100 PIECES PER CARDBOARD BOX. FINISH/COATING ZINC PLATED [See More]
- Number Size: 5/16"
- Washer Type: Lock Tooth Washer - Non Metric
from Peco Fasteners, Inc.
APPLICABLE STANDARD USS. FASTENER SIZE 5/16 INCH. FINISH/COATING PLAIN FINISH. TYPE ROUND. PACKAGE QUANTITY 100 PIECES [See More]
- Number Size: 5/16"
- Washer Type: Flat or USS
from NBS Corp.
Made from medium carbon steel and heat treated for extra hardness, all NBS through hardened USS washers are sourced exclusively from ISO-9001 accredited manufacturers. Available from ¼ ” through 1 ” internal diameter, all through hardened USS washers come with zinc yellow... [See More]
- Number Size: 5/16"
- Finish: ZincChromate
- Material: Steel
from L.H. Dottie Company
SPLIT TYPE. STEEL MATERIAL. ZINC PLATED FINISH. 5/16 INCH FASTENER SIZE. CONSTRUCTIONAL FEATURE CORROSION AND CHEMICAL RESISTANT. PC 4110 MODEL [See More]
- Number Size: 5/16"
- Material: Steel
- Washer Type: Lockwasher, Helical Spring
- Finish: ZincPlated
from Minerallac Company
SPLIT TYPE. STEEL MATERIAL. ZINC PLATED FINISH. 0.322 INCH INNER DIAMETER. 0.583 INCH OUTER DIAMETER. 0.078 INCH THICKNESS. 5/16 INCH FASTENER SIZE. PACKAGING QUANTITY 100 PER BOX [See More]
- Number Size: 5/16"
- Inside Diameter: 0.322
- Washer Type: Spring Lock Washer - Non Metric
- Outside Diameter: 0.583
from Peco Fasteners, Inc.
APPLICABLE STANDARD USS. FASTENER SIZE 5/16 INCH. FINISH/COATING ZINC PLATED. TYPE ROUND. PACKAGE QUANTITY 100 PIECES [See More]
- Number Size: 5/16"
- Finish: ZincPlated
- Washer Type: Flat or USS
from NBS Corp.
Featuring oversized outside diameter, all NBS SAE flat washers are sourced exclusively from ISO-9001 accredited manufacturers. Available from 3/16 ” through 1/2 ” internal diameter, all SAE flat washers come with zinc finish. [See More]
- Number Size: 5/16"
- Outside Diameter: 1.000
- Washer Type: Fender
- Material: Steel
from L.H. Dottie Company
SPLIT TYPE. SILICON BRONZE MATERIAL. 5/16 INCH FASTENER SIZE. APPLICATION SCREWS AND BOLTS. LW MODEL [See More]
- Number Size: 5/16"
- Material: Copper Alloy
- Washer Type: Lockwasher, Helical Spring