Value Collection 534112P M8x1.25 Flat Socket Cap Screw 12.9

Product Description

The VALUE COLLECTION 534112P is an M8x1.25 flat socket cap screw engineered for applications that require a low-profile, flush-mount fastener. Built from 12.9 grade alloy steel with a black oxide finish, this screw delivers high tensile strength and moderate corrosion resistance in a compact head profile. The 90-degree flat head seats flush with or below the mating surface, making it well suited for assemblies where clearance is tight or a smooth exterior surface is required. Drive engagement is through a 5.00 mm hex socket. Overall length is 20.00 mm with full threading along the entire shank. Installers in mechanical, industrial, and precision fabrication trades rely on this fastener for tooling plates, jigs, machine guards, and structural assemblies.

This flat socket cap screw is used in metric-threaded assemblies across industrial machinery, manufacturing equipment, automation fixtures, and structural fabrication. The fully threaded shank maximizes thread engagement in shallow boss applications. The black oxide finish reduces light reflection and provides a base layer of corrosion protection, making it suitable for indoor and controlled-environment applications. It conforms to DIN 7991, ensuring dimensional consistency with metric hardware sourced from multiple suppliers on the same assembly.

Key Features

• 90-degree flat head seats flush with the mating surface for low-profile, snag-free assemblies
• 12.9 grade alloy steel provides high tensile and proof-load strength
• Black oxide finish reduces surface reflection and offers baseline corrosion resistance
• 5.00 mm hex socket drive for standard allen-key or hex bit installation
• Fully threaded shank for maximum thread engagement in thin or shallow boss applications
• Conforms to DIN 7991 for dimensional interchangeability with other metric flat socket cap screws

Compatibility

Designed as a DIN 7991-compliant M8x1.25 flat socket cap screw for use in any metric-threaded assembly requiring a 90-degree flat countersunk head fastener.

Installation Notes

Installation should be performed by a qualified mechanic or fabricator using a calibrated 5.00 mm hex key or hex socket bit. Verify that the countersunk seat angle in the mating part matches the 90-degree head geometry before final torque to avoid cracking the boss or distorting the head. De-energize and lock out any equipment before fastener replacement on active machinery in accordance with applicable OSHA lockout/tagout procedures. Do not substitute thread sealants or adhesives unless specified by the equipment manufacturer, as 12.9 grade fasteners are sensitive to hydrogen embrittlement from certain chemical products.