DIN912 Internal Hex Head Screw - 316 Stainless Steel A4-80 Grade

High tensile partially threaded socket head cap screws with 80kgf/mm² strength, manufactured under ISO working instructions

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Need High-Strength Fasteners That Meet DIN912 Standards for Critical Automotive Assemblies?

Our 316SS internal hex head screws deliver 80kgf/mm² tensile strength with full DIN912 compliance and A4-80 grade certification. Every fastener is inspected using precision measurement tools across multiple critical points, ensuring consistent quality for safety-critical automotive applications. With ISO-compliant manufacturing and complete traceability including head-marked identification, we provide the reliability your assembly lines demand. Contact us for detailed specifications and salt spray test reports tailored to your automotive fastener requirements.

With 45 years of fastener manufacturing expertise, we employ comprehensive quality control using precision inspection tools including calipers, protrusion-height gauges, micrometers, and 2.5D/2D projectors. Every critical measurement point is verified—from head diameter and height to hex recess depth, thread parameters, and grip gaging dimensions. Our multi-blow header technology combined with professional threading and passivation processes guarantees consistent quality and superior corrosion resistance. These 316SS internal hex head screws deliver reliable performance in corrosive environments, making them ideal for OEM manufacturers requiring certified high tensile fasteners with complete traceability and ISO-compliant documentation.


Internal Hex Head Screw

HT002-121119-1

Process: Head formation before threading, and then acid washing
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: Head diameter, Head height, Across the flat and corner of the hex, Hex Rec depth, Hex plug gauge, Total length, Major diameter, Minor diameter, Thread angle, Pitch, Ring gage, Grip gaging length, Total length, Grip gaging body diameter, Thread length

Features

  • Internal Hex Head Complying w/ DIN912
  • 80kgf/mm2 Tensile Strength
  • Partially Threaded
  • A4-80 Letters Input on Head Surface

Specification

  • Item Specification: M5*30
  • Item Material: 316SS