

Ships same day if ordered by 12 pm
Manufacturer pricing rules prevent us from advertising our discount — no account or email required to see it.
Secure Payments
Easy Returns
Expert Advice
Fast Shipping
The VALUE COLLECTION MKBC04C020MBPKG is an M4x0.7 button socket cap screw designed for mechanical assemblies requiring a low-profile fastener head with reliable clamping force. Manufactured from alloy steel to material grade 10.9, this screw delivers high tensile strength suitable for demanding trade and industrial applications. The hex drive socket accepts a 2.50 mm hex key for precise installation in tight clearances. A zinc-blue trivalent chromate finish provides corrosion resistance while meeting RoHS and REACH compliance standards. Each package contains 50 screws, making this SKU efficient for service stock or job-site supply.
Button socket cap screws in M4x0.7 with a 20 mm length under head are commonly used in HVAC equipment panels, electrical enclosures, pump housings, and general mechanical assemblies where a flush or recessed fastener profile is required. The fully threaded shank engages the full depth of tapped holes, making these screws well suited for thin-material fastening tasks. Tradespeople across HVAC, electrical, and plumbing disciplines will find this size a standard fit for equipment access panels, bracket mounts, and component retention hardware.
Designed as a standard ISO 7380 M4x0.7 button socket cap screw suitable for tapped M4 holes in mechanical equipment, electrical enclosures, and HVAC assemblies requiring a low-profile head fastener.
Installation is performed with a 2.50 mm hex key or matching hex bit driver. Power down and de-energize any electrical or mechanical equipment before replacing fasteners on live assemblies. Use proper torque practices consistent with grade 10.9 fastener specifications per the equipment manufacturer guidelines. Do not substitute a lower-grade fastener in applications where grade 10.9 is specified.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
Add install kit to cart
—
Thanks for subscribing!
This email has been registered!