DIN933 Standard Hex Cap Screws with Left Hand Thread Options

ISO-Compliant 18-8 Stainless Steel Hex Cap Screws Manufactured with Multi-Blow Header Technology

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Need Hex Cap Screws That Won't Loosen Under Vibration in Automotive Applications?

Our DIN933 hex cap screws feature left hand thread options specifically designed for applications requiring reverse-thread security in high-vibration automotive environments. Manufactured from 18-8 stainless steel with multi-blow header precision and ISO-compliant inspection at every measurement point, these fasteners ensure reliable performance in critical automotive assemblies. Contact us to discuss your specific thread configuration and material requirements.

With 45 years of manufacturing expertise, we utilize comprehensive inspection tools including calipers, protrusion-height gages, micrometers, and 2.5D/2D projectors to measure critical points across the flat and corner of the hex, head height, thread length, major and minor diameters, thread angle, pitch, and ring gage GO/NO GO verification. Our hex cap screws deliver reliable performance for OEM manufacturers and aftermarket customers requiring high-quality stainless steel fasteners with precise dimensional accuracy and salt spray tested durability for specialized applications.

Hex Cap Screw - Hex Cap Screw forged under DIN933 Standard
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Hex Cap Screw

MF008-110828-1

Process: Using multi blow headers to make the head then threading before passivation
All the items are inspected during the process and before shipping, complying with ISO Working Instruction
Inspection Tools: Calipers, Protrusion-height gage, Micrometer, 2.5D and 2D projector
Measurement Points: Across the flat and corner of the hex, Head height, Thread length, Major diameter, Minor diameter, Thread angle, Pitch, Ring gage GO/NO GO

Features

  • Left Hand Thread
  • Full Thread

Specification

  • Item Specification: 3/8-16*5/8
  • Item Material: 18-8 SS