Value Collection BHS7X04040-025BX M4x0.7 Button Cap Screw

Product Description

The VALUE COLLECTION BHS7X04040-025BX is a partially threaded button socket cap screw engineered to metric M4x0.7 thread specifications with a 40 mm length under head. Manufactured from 18-8 austenitic stainless steel (Material Grade A2), this fastener delivers corrosion resistance suitable for wet, outdoor, or chemical-exposure environments. The hex socket drive accepts a standard hex key for installation in confined spaces where a wrench cannot reach. Conforming to ISO 7380, it meets internationally recognized dimensional tolerances and is supplied with a bright, uncoated finish. This package contains 25 pieces sold as a box unit, making it appropriate for production assembly, maintenance stock, or field kit replenishment.

This fastener is used wherever a low-profile button head is required to clear adjacent components or present a flush, clean appearance. Common applications include equipment enclosures, HVAC control panel assemblies, electrical cabinet hardware, pump and motor mounting brackets, and general mechanical assemblies requiring metric fasteners. The stainless steel construction makes it a reliable choice in high-humidity environments such as rooftop equipment, pool mechanical rooms, and marine-adjacent installations. Installation is performed by licensed technicians or experienced tradespeople working on metal fabrications and equipment requiring metric fastening.

Key Features

• M4x0.7 metric thread with 40 mm length under head for precise fitment in metric-spec assemblies
• 18-8 austenitic stainless steel, Material Grade A2, per ISO 7380 dimensional standard
• Low-profile button head design reduces clearance requirements compared to standard socket cap screws
• Hex socket drive allows installation in tight or recessed locations with a standard hex key
• Bright uncoated finish maintains dimensional accuracy without plating buildup on threads
• Partially threaded shank for positive clamping force in through-bolt applications

Compatibility

Designed as a metric ISO 7380 button socket cap screw for use in any application requiring an M4x0.7 thread pattern with a partially threaded, low-profile button head configuration.

Installation Notes

Install using the appropriately sized metric hex key to avoid rounding the socket drive. Verify thread engagement depth meets the requirements of the mating material before applying torque. Stainless steel fasteners are susceptible to galling during installation - apply an appropriate anti-seize compound when threading into stainless or aluminum tapped holes. Inspect threads for contamination or damage before installation to ensure full engagement and proper clamping load.