Value Collection 701119PR Button Socket Cap Screw 1/4-20

Product Description

The VALUE COLLECTION 701119PR is a button socket cap screw designed for applications requiring a low-profile fastener head combined with high tensile strength. Manufactured from alloy steel with a black oxide finish, this screw features a 1/4-20 UNC thread at 5/16 inch length under the head and is driven by a 5/32 inch hex socket. It is fully threaded, carries a Thread Fit Class 3A designation, and meets ANSI/ASME B18.3 and ASTM F835 standards. Hardness ranges from 36 to 43 HRC. Machinists, millwrights, and maintenance technicians working on equipment assemblies, fixtures, and enclosures regularly specify this fastener type where flush or recessed head clearance is needed.

This button socket cap screw suits light to medium clamping applications in mechanical assemblies, machine guarding, panel mounting, and general fabrication. The black oxide coating provides mild corrosion resistance and reduces light reflection, making it a common choice in industrial and manufacturing environments. The low-profile domed button head distributes load over a wider bearing surface compared to a standard socket head cap screw. This SKU is sold as a single piece with a minimum order quantity of 100 units.

Key Features

• 1/4-20 UNC fully threaded, right-hand thread, Thread Fit Class 3A
• 5/16 inch length under head with low-profile button head design
• 5/32 inch hex socket drive for use with standard Allen wrenches or hex keys
• Alloy steel construction with 36-43 HRC hardness range
• Black oxide finish for mild corrosion resistance and reduced reflectivity
• Meets ANSI/ASME B18.3 and ASTM F835 standards

Compatibility

Designed as a direct-fit replacement or standard-specification button socket cap screw for any assembly requiring a 1/4-20 UNC fully threaded fastener conforming to ANSI/ASME B18.3 and ASTM F835.

Installation Notes

Installation should be performed by a qualified machinist, technician, or maintenance professional using a properly sized 5/32 inch hex key or socket driver. Ensure mating threads are clean and free of debris before installation to maintain Thread Fit Class 3A tolerances. Do not exceed the design load for this fastener size and hardness grade, and avoid using impact drivers that may overstress the socket drive recess. Follow applicable facility or equipment manufacturer torque guidelines for 1/4-20 alloy steel fasteners.