Value Collection 581226PR Hex Socket Cap Screw 6-40 Unf

Product Description

The VALUE COLLECTION 581226PR is a hex socket cap screw designed for precision fastening applications requiring a low-profile, high-strength connection. Manufactured from alloy steel with a black oxide finish, this fastener features a 6-40 UNF thread size and measures 3/16 inches in length under the head. It is driven with a 7/64 inch hex key. The black oxide coating provides mild corrosion resistance and reduces light reflection in visible assemblies. This screw is fully threaded along its length, ensuring maximum thread engagement in shallow tapped holes. It meets ASME/ANSI B18.3 and ASTM A574 standards, confirming dimensional accuracy and minimum tensile strength requirements for alloy steel socket cap screws.

This fastener is suited for use in mechanical assemblies, precision equipment, tooling fixtures, and applications where a recessed hex drive is preferred over an external hex head. The fine 6-40 UNF thread pitch provides greater thread engagement and holding strength in thin materials compared to coarse-thread equivalents. Typical installation environments include machine shops, maintenance operations, and light industrial assembly. This item is sold individually but carries a minimum order quantity of 100 pieces.

Key Features

• 6-40 UNF fully threaded alloy steel construction for high tensile strength
• Black oxide finish provides mild corrosion resistance and a low-reflectance appearance
• 7/64 inch hex drive for use with standard hex keys or Allen wrenches
• 3/16 inch length under head for use in shallow or space-constrained tap applications
• Meets ASME/ANSI B18.3 and ASTM A574 dimensional and mechanical standards

Compatibility

Designed as a standard replacement or stock fastener for assemblies requiring a 6-40 UNF socket cap screw with a 3/16 inch length under head per ASME/ANSI B18.3 specifications.

Installation Notes

Installation is performed with a 7/64 inch hex key or Allen wrench. Verify that the mating tapped hole is clean and free of debris before installation. Avoid over-torquing fine-thread fasteners in alloy or aluminum components, as thread stripping can occur. Always confirm thread engagement depth meets the requirements of the assembly design before final tightening.