Value Collection -40870-5 Button Socket Cap Screw 3/8-24

Product Description

The VALUE COLLECTION -40870-5 is a button socket cap screw designed for applications requiring a low-profile head with high clamping strength. Sized at 3/8-24 UNF x 1/2 inch under the head, it is fully threaded and driven by a 7/32 inch hex socket key. The alloy steel construction delivers a hardness rating of 36 to 43 HRC, making it suitable for demanding mechanical assemblies. A black oxide finish provides mild corrosion resistance and a matte appearance. This fastener meets ANSI/ASME B18.3 and ASTM F835 standards. Mechanical assemblers, maintenance technicians, and fabricators install these screws across a wide range of industrial and OEM applications.

The -40870-5 button socket cap screw is used in applications where a standard hex cap screw head would interfere with adjacent components or where a finished, low-profile appearance is required. Typical uses include machine guarding, panel assembly, jig and fixture construction, and general industrial fabrication. The 3/8-24 UNF thread pitch is suited for applications requiring finer thread engagement than coarse-pitch alternatives. This fastener ships in a 50-piece package, making it practical for benchtop stock or small-run assembly work.

Key Features

• Button head profile provides low clearance and a clean finished look in visible assemblies
• 7/32 inch hex socket drive for use with standard ball-end or L-key hex drivers
• Fully threaded 3/8-24 UNF right-hand thread with Class 3A fit for precise thread engagement
• Alloy steel construction rated 36 to 43 HRC for high-strength mechanical applications
• Black oxide coating offers mild corrosion resistance and reduces light reflection
• Meets ANSI/ASME B18.3 and ASTM F835 fastener standards

Compatibility

Designed as an OEM-style and general-purpose replacement button socket cap screw for any 3/8-24 UNF tapped hole application requiring an ANSI/ASME B18.3 or ASTM F835 compliant fastener.

Installation Notes

Installation requires a 7/32 inch hex key or socket bit driver. Ensure the mating tapped hole is clean and free of debris before driving the screw to avoid cross-threading the UNF threads. Apply appropriate thread-locking compound or torque to specification per the host equipment manufacturer's guidelines. Follow all applicable mechanical codes and safety procedures when working on powered or pressurized equipment.