Holo-krome 64050 Button Socket Cap Screw 1/4-20 1in

Product Description

The HOLO-KROME 64050 is a 1/4-20 button socket cap screw designed for applications requiring a low-profile fastener with high torsional strength. Manufactured from alloy steel with a black oxide finish, this screw meets ANSI/ASME B18.3 and ASTM F835 standards. It features a hex socket drive sized at 5/32 inches and a fully threaded shank with a 1-inch length under head. Hardness is rated at 38 HRC, and the thread fit is Class 3A with right-hand direction to UNRC thread standard. Licensed electricians, millwrights, HVAC technicians, and mechanical contractors commonly install this fastener in panel assemblies, equipment enclosures, and structural brackets.

This screw is suited for residential and light commercial mechanical and electrical assemblies where a flush or near-flush fastener head is required. The button head profile reduces snagging risk in tight enclosures and sheet-metal assemblies. It is a standard choice for mounting brackets, equipment frames, and control panel components where an Allen-style drive and corrosion-resistant finish are preferred. This fastener is sold individually but carries a minimum order quantity of 50 pieces.

Key Features

• Button head profile provides a low-profile, snag-resistant surface
• Alloy steel construction rated at 38 HRC hardness for high-strength applications
• Black oxide finish provides moderate corrosion resistance
• 5/32-inch hex socket drive for Allen wrench installation
• Fully threaded 1/4-20 UNC shank with Class 3A thread fit
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style replacement or standard fastener for mechanical assemblies requiring a 1/4-20 UNC button socket cap screw with a 1-inch length under head and black oxide alloy steel construction.

Installation Notes

Installation requires a 5/32-inch hex key or Allen driver. De-energize and lock out any equipment before working on enclosures or panels per applicable OSHA lockout/tagout procedures. Do not overtighten alloy socket cap screws in thin sheet-metal applications, as thread stripping can occur. Follow applicable mechanical codes and equipment manufacturer torque guidelines when available.