Holo-krome 770407035 Hex Socket Cap Screw M4 X 0.70

Product Description

The HOLO-KROME 770407035 is a metric hex socket cap screw designed for secure, high-strength fastening in precision mechanical assemblies. This M4 x 0.70 screw has a 35 mm length under head and is partially threaded, which allows the unthreaded shank to bear shear loads while the threaded section anchors into tapped holes or threaded inserts. Manufactured from austenitic Grade A4 stainless steel with a bright, uncoated finish, it offers solid corrosion resistance in wet or chemically exposed environments. The internal hex drive accepts a standard hex key for installation in confined spaces where a wrench cannot reach. Machinists, millwrights, industrial maintenance technicians, and mechanical contractors are the typical installers.

This screw is appropriate for a wide range of industrial, mechanical, and structural applications where a compact, flush-sitting fastener is required. Common use cases include equipment frames, pump housings, valve bodies, brackets, and marine or food-service assemblies where stainless steel is specified for sanitary or corrosion resistance reasons. The M4 thread size and 35 mm under-head length make it well suited for moderate-duty fastening tasks in both light machinery and precision instrument mounting. It conforms to ISO 3506-1 and ISO 4762, which are widely recognized international fastener standards for stainless socket cap screws.

Key Features

• M4 x 0.70 metric thread with 35 mm length under head for precise depth control
• Partially threaded shank handles shear loads while threaded end secures the joint
• Austenitic Grade A4 stainless steel construction for corrosion resistance in harsh or wet environments
• Bright, uncoated finish maintains dimensional accuracy and is compatible with standard M4 tapped holes
• Internal hex socket drive allows installation in tight or recessed locations
• Meets ISO 3506-1 and ISO 4762 fastener standards

Compatibility

Designed as an ISO 4762-compliant replacement or standard-fit hex socket cap screw for any application specifying an M4 x 0.70 partially threaded stainless socket cap screw with 35 mm length under head.

Installation Notes

Installation is performed by machinists, millwrights, or mechanical technicians using a calibrated hex key or Allen-drive bit sized for M4 socket cap screws. Always verify that the receiving tapped hole meets the M4 x 0.70 thread specification and is clean and free of debris before driving the fastener. Do not exceed the torque range appropriate for Grade A4 stainless M4 hardware, as stainless fasteners are susceptible to galling if driven too aggressively without lubrication. Apply an appropriate anti-seize compound when installing into stainless or aluminum tapped holes to prevent thread seizing.