1/4" Captive Fasteners
Last Updated: February 12, 2025
Description
1/4" Captive Fasteners are designed to remain attached to the parent assembly even when not engaged, preventing loss or damage. These fasteners are typically used to secure components together, ensuring that they remain in place without the risk of becoming detached or misplaced.
Working Principle
Captive fasteners operate by being retained within their functional environment, often through a self-clinching or broaching mechanism, depending on the material they are used with. This retention is achieved by the fastener's design, which allows it to stay attached to the assembly, thus preventing loss. The spring element in quarter-turn fasteners, for example, provides a preload that ensures the fastener remains secure, offering resistance to vibration and loosening .
Applications
Captive fasteners are commonly used in applications where components need to be easily replaced or where hardware is not easily accessible. Specific examples include securing circuit boards with captive standoffs or attaching metal housing to body structures using captive studs .
Advantages over other Captive Fasteners
Quarter-turn fasteners, a type of captive fastener, offer significant advantages over other fastening methods. They provide vibration resistance due to the spring compliance built into their design, which also facilitates positive locking against vibration. Additionally, they allow for quick and easy assembly and disassembly, reducing service time and costs over the equipment's lifetime .
Limitations
One limitation of captive fasteners is that they must be compatible with the panel or sheet material being used. The hardness of the fastener must be greater than the hardness of the panel material to ensure proper functionality and retention .
Considerations
When considering the use of captive fasteners, it is important to evaluate initial costs, operating expenses, and maintenance requirements. Captive fasteners can reduce assembly time and costs due to their ease of installation and retention features. However, the compatibility of the fastener with the material and the need for adherence to specific standards must be considered to ensure durability and accuracy in their application .
from PennEngineering®
Low-profile design satisfies many functional and cosmetic requirements. Type PF50 with convenient large head and Phillips recess for tool or finger operation. Available with six-lobe recess. [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified
- Decimal Thread Diameter: 0.2500
- Shoulder Diameter: 0.0580
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Stainless Steel
from PennEngineering®
Low-profile design satisfies many functional and cosmetic requirements. Convenient, large, slotted head for tool or finger operation. [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified
- Decimal Thread Diameter: 0.2500
- Shoulder Diameter: 0.0580
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Steel
from PennEngineering®
Fully concealed-head for tool only access. UL approved. Assorted screw lengths for most applications. [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified
- Decimal Thread Diameter: 0.2500
- Shoulder Diameter: 0.0600
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Stainless Steel
from PennEngineering®
Shoulder on retainer provides positive stop during installation. Available in self-clinching, flaring, or floating mounting styles. Available with knurled or un-knurled metal cap, black metal cap, or a custom color plastic cap. [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified
- Decimal Thread Diameter: 0.2500
- Panel Thickness: 0.0360
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Steel
from PennEngineering®
Appropriate for close centerline-to-edge applications. Doesn ’t require high installation force. Installs into any panel hardness. Installs flush on back side of panel. [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified
- Decimal Thread Diameter: 0.2500
- Panel Thickness: 0.0600
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Stainless Steel
from PennEngineering®
Compensates for mating hole misalignment. Installs into any panel hardness. [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified
- Decimal Thread Diameter: 0.2500
- Hole Size: 0.4130
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Steel
from PennEngineering®
Shoulder on retainer provides positive stop during installation. Available in self-clinching, flaring, or floating mounting styles. Available with knurled or un-knurled metal cap, black metal cap, or a custom color plastic cap. [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified
- Decimal Thread Diameter: 0.2500
- Shoulder Diameter: 0.0360
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Stainless Steel
from PennEngineering®
Available in steel or stainless steel. Meets “operator access area ” requirements similar to UL 508. Tool or finger operation. Most sizes available in three screw lengths. [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified
- Decimal Thread Diameter: 0.2500
- Shoulder Diameter: 0.0600
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Natural
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Powder Coat
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Zinc Plated; Other; Zinc Plate
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Zinc Plated; Other; Zinc Plate
- Material: Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Passivated
- Material: Stainless Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Black organic finish
- Material: Stainless Steel
from Southco
These screws and captive screws provide an attractive polished finish and ample shaft length to mate with threaded receptacle on frame, throughout a range of panel thicknesses. They are available with or without spring ejection to retract the screw body when threads are disengaged. [See More]
- Captive Fastener Class / Type: Captive Screws
- Material: Stainless Steel
- Head Type: Other; No Recess
- Finish: Other; Black organic finish
from bisco industries
Captive Screws [See More]
- Captive Fastener Class / Type: Captive Screws
- Finish: Other; Polished
- Material: Stainless Steel
from NBK America LLC
It prevents fall-off and loss of the screw. For fixing of protection cover and cover for inspection that are frequently mounted and removed. Inch screw type. For CE marking. ⇒Use the NBK Captive Screw Series to be comply with CE. Use a dedicated wrench SKH(INCH)for mounting and... [See More]
- Captive Fastener Class / Type: Captive Screws
- Fastener Length: 1
- Unified Thread Notation: Unified
- Head Type: Socket Head Cap
from Reid Supply
Screws are threaded fasteners used to join two or more objects or hold an object in position. We offer a diverse line of screws with imperial or metric threads. Our assortment of cap screws includes standard head, button head, flat head, flange head, and more. We also stock a large selection of... [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified; Other; 1/4-20
- Decimal Thread Diameter: 0.2500
- Fastener Length: 0.5000
from RAF Electronic Hardware
Captive Panel Screws - Style 1 [See More]
- Captive Fastener Class / Type: Captive Screws
- Fastener Length: 0.6250
- Unified Thread Notation: Unified
- Material: Brass
from Reid Supply
Screws are threaded fasteners used to join two or more objects or hold an object in position. We offer a diverse line of screws with imperial or metric threads. Our assortment of cap screws includes standard head, button head, flat head, flange head, and more. We also stock a large selection of... [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified; Other; 1/4-20
- Decimal Thread Diameter: 0.2500
- Fastener Length: 0.7500
from RAF Electronic Hardware
Captive Panel Screws - Style 2 [See More]
- Captive Fastener Class / Type: Captive Screws
- Fastener Length: 0.6250
- Unified Thread Notation: Unified
- Material: Brass
from Reid Supply
Screws are threaded fasteners used to join two or more objects or hold an object in position. We offer a diverse line of screws with imperial or metric threads. Our assortment of cap screws includes standard head, button head, flat head, flange head, and more. We also stock a large selection of... [See More]
- Captive Fastener Class / Type: Captive Screws
- Unified Thread Notation: Unified; Other; 1/4-20
- Decimal Thread Diameter: 0.2500
- Fastener Length: 0.7500
from RAF Electronic Hardware
Captive Panel Screws - Style 3 [See More]
- Captive Fastener Class / Type: Captive Screws
- Fastener Length: 0.7500
- Unified Thread Notation: Unified
- Material: Brass