Value Collection 43177 M12x1.75 Flat Socket Cap Screw 12.9

Product Description

The VALUE COLLECTION 43177 is a metric flat socket cap screw designed for flush or countersunk fastening applications in metal assemblies. It features a 90-degree flat head driven by an 8 mm hex socket and a fully threaded M12x1.75 shank with an overall length of 30 mm. Manufactured from 12.9 grade alloy steel with a black oxide finish, this screw delivers high tensile strength and moderate corrosion resistance. It conforms to DIN 7991, making it a standard replacement or build-spec fastener for precision mechanical, industrial, and structural assemblies. Machinists, millwrights, and maintenance technicians are the typical end users.

This flat socket cap screw is suited for applications where a standard hex socket cap screw head would protrude above a mating surface. Common uses include machine frames, jigs, fixtures, tooling plates, and industrial equipment where a low-profile or countersunk fastener profile is required. The 12.9 material grade makes it appropriate for high-load, high-torque connections in demanding assemblies. It is sold individually with a minimum order quantity of 10 pieces.

Key Features

• 90-degree flat head seats flush in countersunk holes for a low-profile installation
• 8 mm hex socket drive compatible with standard hex keys and socket drivers
• 12.9 alloy steel grade provides high tensile and proof load strength
• Black oxide finish offers mild corrosion resistance and reduces light reflection
• Fully threaded shank along the entire 30 mm length for maximum thread engagement
• Conforms to DIN 7991 for dimensional interchangeability with other metric flat socket cap screws

Compatibility

Designed as a DIN 7991-compliant metric flat socket cap screw for use in any application requiring an M12x1.75 countersunk socket fastener with a 12.9 material grade.

Installation Notes

Installation is typically performed by machinists or maintenance technicians using an 8 mm hex key or socket driver. Verify that the mating countersink is machined to the correct 90-degree angle and diameter before installation. Apply a thread-locking compound or hardened washer as required by the assembly specification. Never exceed the rated torque for the fastener grade as specified by the applicable engineering standard for 12.9 alloy steel fasteners.