Value Collection A210273 Button Cap Screw M4x0.70 8mm 25pk

Product Description

The VALUE COLLECTION A210273 is a fully threaded button socket cap screw designed for metric fastening applications requiring a low-profile head and high corrosion resistance. The button head style sits flush and wide, distributing clamping load across a larger surface area than a standard cap screw. Driven by a 2.50 mm hex socket, this screw suits tight-clearance assemblies where a hex key or Allen driver is the tool of choice. Manufactured from 18-8 stainless steel (A2 grade) with a bright, uncoated finish, it meets ISO 7380 standards and is sold in a package quantity of 25.

This screw is suited for light to medium-duty mechanical assemblies, equipment panels, enclosures, brackets, and fixtures where a metric M4 thread pitch of 0.70 is specified. The 8 mm length under head makes it a practical choice for thin-stock or layered material joins. Machinists, millwrights, equipment technicians, and field service professionals working with metric-specification hardware will find this a direct drop-in for ISO 7380-compliant fastener positions. The right-hand thread direction is standard for the vast majority of metric assemblies.

Key Features

• M4x0.70 metric thread with right-hand direction and ISO 7380 fastener standard compliance
• 8 mm length under head — suitable for thin-stock and layered material assemblies
• Button head profile provides low-profile, wide-bearing clamping surface
• 2.50 mm hex socket drive for use with standard metric hex keys or Allen drivers
• 18-8 stainless steel (A2 grade) construction for corrosion resistance in wet or outdoor environments
• Bright, uncoated finish — no plating to chip or flake in service
• Thread fit class 4G / 6G for reliable engagement across standard metric tapped holes

Compatibility

Designed as a direct-fit replacement or standard-stock fastener for any metric assembly requiring an ISO 7380 button socket cap screw in M4x0.70 thread size with an 8 mm length under head.

Installation Notes

Installation requires a 2.50 mm hex key or hex socket driver — do not substitute an undersized or oversized key as this will damage the drive recess. Verify the mating tapped hole meets M4x0.70 thread specification before installation. Apply appropriate torque for A2 stainless steel fasteners per applicable assembly or equipment manufacturer specifications; stainless fasteners are susceptible to galling if driven too fast without lubrication. Follow all applicable mechanical assembly codes and equipment lockout procedures before replacing fasteners in powered or pressurized systems.