Value Collection A210276 Button Cap Screw M4x0.70 30mm 25-pack

Product Description

The VALUE COLLECTION A210276 is a metric button socket cap screw designed for applications requiring a low-profile fastener with a clean, rounded head. Sized at M4x0.70 with a 30mm length under the head, it features a 2.50mm hex socket drive for use with a standard hex key or Allen driver. Constructed from 18-8 austenitic stainless steel (A2 grade), this fastener offers solid corrosion resistance in both indoor and outdoor environments. The partial thread design and right-hand thread direction follow ISO 7380 standards. Each package contains 25 screws. Typical installers include machinists, fabricators, electricians, and HVAC technicians working with panel assemblies and equipment enclosures.

This screw is suited for light-duty mechanical assemblies, equipment enclosures, electrical panels, sheet metal work, and general fabrication where a flush, low-profile head is preferred over a standard hex cap or socket head. The button head sits close to the mating surface, reducing snagging hazards in tight clearances. The 4G and 6G thread fit classes allow for reliable thread engagement across a range of tapped holes conforming to metric standards. Sold in packages of 25, this part is appropriate for both single-job use and small shop inventory restocking.

Key Features

• M4x0.70 thread size conforming to ISO 7380 metric fastener standard
• 30mm length under head, partially threaded for controlled engagement depth
• 2.50mm hex socket drive compatible with standard metric Allen keys
• 18-8 austenitic stainless steel (A2 grade) for corrosion resistance
• Button head profile minimizes protrusion and snagging in confined spaces
• Right-hand thread direction with 4G and 6G thread fit class compliance
• Bright, uncoated finish — no plating to chip or flake in service

Compatibility

Designed for use in any application requiring an ISO 7380-compliant M4x0.70 metric button socket cap screw with a 30mm length under the head. Suitable for tapped holes conforming to 4G or 6G metric thread fit classes.

Installation Notes

Installation is performed with a 2.50mm hex key or Allen driver. Verify that the tapped hole depth and thread class match the screw specifications before driving. Do not overtighten — stainless steel fasteners are susceptible to galling if driven with excessive speed or torque without lubrication. Follow applicable mechanical assembly codes and equipment manufacturer torque guidelines for M4 fasteners in the target material.