5/16" Locknuts
from National Bolt & Nut Corporation
ALL METAL LOCK NUTS. Dimensions per IFI-100/107. Crowned top. Nylon inserts and Nuts with patches also available as an option on the Request for Information form. Other materials and finishes available. For further information, call or send an information request. In conjunction with our selection... [See More]
- Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 5/8"; 3/4"; 7/8"; 1"; 1 1/8"; 1 1/4"; 1 3/8"; 1 1/2"; 1 3/4"; 2"
- Material: Steel
- Type: Optional Nylon Inserts and Patches; Nylon Insert Nut (optional feature)
- Finish: Zinc Plated; Zinc Chromate; Cadmium & Wax
from PennEngineering®
Engineered to Eliminate Vibration Loosening. In high-vibration environments, traditional locking methods present compromises. Nylon inserts degrade, lock washers lose effectiveness, and thread adhesives need time-consuming application. As vibration cycles grow, these fastening solutions can... [See More]
- Size: #4; #6; #8; #10; 1/4"; 5/16"; M3; M4; M5; M6; M8
- Finish: Zinc Plated
- Material: Hardened Steel
- Features: Vibration Dampening
from bisco industries
Lock Nuts [See More]
- Size: 5/16"; 5/16-18
from National Bolt & Nut Corporation
COUPLING NUTS. Regular width across flats. Commonly used with Threaded Rod. Nylon inserts and Nuts with patches also available as an option on the information request form. Other materials and finishes available. For further information, call or send an information request. In conjunction with our... [See More]
- Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 5/8"; 3/4"; 7/8"; 1"; 1 1/4"; 1 1/2"
- Material: Steel
- Type: Optional Nylon Inserts and Patches; Nylon Insert Nut (optional feature)
- Finish: Zinc Plated
from PennEngineering®
PEM ® S-RT ™ free-running locknuts are free-running until clamp load is induced. A modified thread angle on the loaded flank provides the vibration resistant locking feature. Screw turns freely until a clamp load is applied. Resistant to vibrational loosening. Back side of panel is flush... [See More]
- Size: #4; #6; #8; #10; 1/4"; 5/16"
- Material: Steel
- Type: Free-running Locknut
- Finish: Zinc Plated
from bisco industries
Lock Nuts [See More]
- Size: 5/16"; 0.313-18 (5/16-18)
- Material: Steel
from National Bolt & Nut Corporation
HEAVY HEX JAM NUTS. Dimensions per ANSI B18.2.2. Nylon inserts and Nuts with patches also available as an option on the Request for Information form. Other materials and finishes available. For further information, call or send an information request. In conjunction with our selection of bolts and... [See More]
- Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 5/8"; 3/4"; 7/8"; 1"; 1 1/8"; 1 1/4"; 1 3/8"; 1 1/2"; 1 3/4"; 2"; 2 1/4"; 2 1/2"; 2 3/4"; Size Range: 1/4" - 3-1/2", Fine and Course Threads
- Material: Steel
- Type: Jam Nut; Optional Nylon Inserts and Patches; Nylon Insert Nut (optional feature)
- Finish: Pain
from PennEngineering®
Type SL self-locking nuts are designed with a unique and economical TRI-DENT ® locking feature, which meets demanding locking performance requirements. 3 cycle locking performance. Achieved using steel socket head cap screws, 180 ksi / property class 12.9 with standard finish of thermal oxide... [See More]
- Size: #5; 5/16"
- Material: Hardened Steel
- Type: TRI-DENT® Locking Feature
- Finish: Zinc Plated
from National Bolt & Nut Corporation
HEAVY HEX NUTS. As part of our premium line of hex nut products, National Bolt & Nut offers a wide range of heavy hex nuts in various grades, finishes, threads, and sizes to meet your unique application requirements. Meeting ANSI B18.2.2 dimensional requirements, heavy hex nuts are popular for... [See More]
- Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 5/8"; 3/4"; 7/8"; 1"; 1 1/8"; 1 1/4"; 1 3/8"; 1 1/2"; 1 3/4"; 2"; 2 1/4"; 2 1/2"; 2 3/4"; Size Range: 1/4" - 5", Fine and Course Threads
- Material: Steel
- Type: Optional Nylon Inserts and Patches; Nylon Insert Nut (optional feature)
- Finish: Zinc Plated; Plain
from J.Lanfranco Fastener Systems Inc.
The one-piece ERM is a great time saver. The ERM combines the performance of the ESL with an integrated disc spring washer. The result: Quick installations and absolute tension maintained under dynamic loads. [See More]
- Size: 5/16"
- Material: Exotic Metals (optional feature); Steel (optional feature); Hardened Steel (optional feature); Stainless Steel (optional feature); Titanium (optional feature)
- Type: Slotted Locknut
- Finish: Anti-Galling Coating (optional feature); Phosphate (optional feature); Galvanized (optional feature); Nickel Plated (optional feature); Zinc Plated (optional feature); Zinc Chromate (optional feature); Self-Color, Pass., Anti-Galling, Geomet
from G.L. Huyett
A locknut, also known as a lock nut, locking nut, prevailing torque nut, stiff nut or elastic stop nut, is a nut that resists loosening under vibrations and torque. Elastic stop nuts and prevailing torque nuts are of the particular type where some portion of the nut deforms elastically to provide a... [See More]
- Size: #10; 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; M4; M5; M6; M8; M10; M12
- Material: Carbon Steel
- Type: Elastic Stop Nut
- Thread Direction: Right Hand
from Te-Co, Inc.
Product Information. Black Oxide Finish. Case Hardened. High Grade Alloy Steel. Will outlast ordinary Hex Jam Nuts when used in repetitive operations. Standard package quantity: 25 pcs. [See More]
- Size: 5/16"
- Material: Hardened Steel
- Type: Jam Nut
- Finish: Black Oxide
from Monroe Engineering
Hardened Black Oxide Finish [See More]
- Size: 5/16"
- Material: Hardened Steel
- Type: Jam Nut
- Finish: Black Oxide
from Reid Supply
Reid has a large selection of industrial nuts for all of your fastening needs. Reid offers everything from tooling, allen, button thread, Jam, standard hex, thumb and flange nuts to industrial T-slot and machine screw nuts. Reid offers both imperial and metric nuts in a wide variety of materials... [See More]
- Size: 5/16"
- Material: Stainless Steel; 303 Stainless Steel
- Type: Jam Nut
from NBS Corp.
Individually top pressed to produce a razor tight sealing lock, NBS ’ top lock flange nuts set the standard for all locking flange nuts. Available from ¼ ” through ¾ ” (inch) and M6 through M16 (metric) internal diameter, all top lock flange nuts are non-serrated... [See More]
- Size: 5/16"
- Finish: Phosphate
- Material: Steel
from PENCOM
Custom sizes and other finishes available [See More]
- Size: 5/16"
- Material: Steel (optional feature); Stainless Steel (optional feature)
- Type: Jam Nut
- Finish: Zinc Plated; Black Zinc
from Peco Fasteners, Inc.
5/16 INCH NOMINAL DIAMETER. 18 TPI. 5/16 NOMINAL DIAMETER - FRACTIONAL. .3125 NOMINAL DIAMETER - DECIMAL. FINISH/COATING ZINC PLATED. NOMINAL DIAMETER - DECIMAL - UOM IN [See More]
- Size: 5/16"
- Finish: Zinc Plated
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]
- Size: 1/4"; 5/16"; 3/8"; 7/16"; 1/2"; 5/8"; 3/4"; 7/8"; 1"; 1 1/8"; 1 1/4"; 1 3/8"; 1 1/2"; 1 3/4"; 2"; 2 1/4"; 2 1/2"; 2 3/4"
- Material: Steel (optional feature); Stainless Steel (optional feature); Plastic (optional feature); Nylon (optional feature); Alloy Steel
- Type: Nylon Insert Nut
- Standards: ASME/ANSI (optional feature); SAE (optional feature); ASTM
from Fastener SuperStore, Inc.
5/16-18 Flex-Locknuts / Full Height / Hex / Cad and Wax. An all-metal, one-piece, hex-shaped lock nut with a round collar at its back end. The collar is segmented with opposed slots cut into it above each corner of the nut. When the screw or bolt reaches the collar, the slotted portion expands which... [See More]
- Size: 5/16"
- Material: Steel
- Type: Flex-Top Locknuts
- Finish: Cadmium
from J.Lanfranco Fastener Systems Inc.
The ESL's two self-locking slots make it ideal in any application subjected to high vibration, shock, impact, heavy loads, and high temperatures. The ESL provides unparalleled locking ability without seizing up upon removal. [See More]
- Size: 5/16"
- Material: Bronze (optional feature); Brass (optional feature); Exotic Metals (optional feature); Steel (optional feature); Hardened Steel (optional feature); Stainless Steel (optional feature); Titanium (optional feature); Light Alloy
- Type: Slotted Locknut
- Finish: Anti-Galling Coating (optional feature); Phosphate (optional feature); Galvanized (optional feature); Nickel Plated (optional feature); Zinc Plated (optional feature); Zinc Chromate (optional feature); Self-Color, Pass., Anti-Galling, Geomet
from Monroe Engineering
Black Oxide Finish [See More]
- Size: 5/16"
- Material: Steel
- Type: Jam Nut
- Finish: Black Oxide
from Reid Supply
Reid has a large selection of industrial nuts for all of your fastening needs. Reid offers everything from tooling, allen, button thread, Jam, standard hex, thumb and flange nuts to industrial T-slot and machine screw nuts. Reid offers both imperial and metric nuts in a wide variety of materials... [See More]
- Size: 5/16"
- Material: Case Hardened Steel
- Type: Jam Nut
from NBS Corp.
Featuring a built in external tooth lock washer for exceptional surface grip, NBS ’ k-lock nuts are available from ¼ ” through ¾ ” internal diameter. All k-lock nuts are sourced from ISO-9001 accredited manufacturers and come with zinc finish. [See More]
- Size: 5/16"
- Material: Steel
- Type: Jet Nut (K-Nut)
- Finish: Zinc Plated
from Peco Fasteners, Inc.
5/16 INCH NOMINAL DIAMETER. SAE APPLICABLE STANDARD. 5/16 NOMINAL DIAMETER - FRACTIONAL. .3125 NOMINAL DIAMETER - DECIMAL. FINISH/COATING ZINC PLATED. NOMINAL DIAMETER - DECIMAL - UOM IN [See More]
- Size: 5/16"
- Finish: Zinc Plated
from Reid Supply
Reid has a large selection of industrial nuts for all of your fastening needs. Reid offers everything from tooling, allen, button thread, Jam, standard hex, thumb and flange nuts to industrial T-slot and machine screw nuts. Reid offers both imperial and metric nuts in a wide variety of materials... [See More]
- Size: 5/16"
- Material: Case Hardened Steel
- Type: Jam Nut
from NBS Corp.
Featuring a white nylon insert and available in both normal and thin pattern, NBS ’ nylon insert lock nuts are the ideal general purpose locking nut. Available from ¼ ” through 1 ” (inch) and M3 through M16 (metric) internal diameter, all nylon insert lock nuts meet IFI... [See More]
- Size: 5/16"
- Finish: Zinc Plated
- Material: Steel
from Peco Fasteners, Inc.
NYLON INSERT TYPE. 5/16 INCH NOMINAL DIAMETER. 24 TPI. SAE APPLICABLE STANDARD. 5/16 NOMINAL DIAMETER - FRACTIONAL. .3125 NOMINAL DIAMETER - DECIMAL. NOMINAL DIAMETER - DECIMAL - UOM IN [See More]
- Size: 5/16"
from Reid Supply
Reid has a large selection of industrial nuts for all of your fastening needs. Reid offers everything from tooling, allen, button thread, Jam, standard hex, thumb and flange nuts to industrial T-slot and machine screw nuts. Reid offers both imperial and metric nuts in a wide variety of materials... [See More]
- Size: 5/16"
- Material: Case Hardened Steel
- Type: Jam Nut