DIN6912 Low Head Bolt Specifications
Parameter | Details |
Product Name | DIN6912 Low Head Hex Socket Bolt, Pilot Recess Positioning Screw |
Standard | DIN6912 German Industrial Standard |
Structure | Low-profile thin head, central pilot recess positioning, hex socket drive, low protrusion design |
Grade | Carbon Steel: 8.8/10.9/12.9; Stainless Steel: A2-70/A4-80 |
Surface Finish | Black Oxide, Zinc Plated, Natural Stainless Steel Finish |
Thread Class | Metric Coarse Thread |
Size Range | M4-M36 Full Sizes In Stock, Custom Non-standard Length Available |
Core Function | Precision positioning, narrow gap fastening, low-protrusion assembly, anti-offset fixing |
Application | Automation equipment, mold tooling, precision instruments, automotive & electronic devices |
Inspection | Dimensional test, thread gauge inspection, positioning recess precision test, hardness & tension test |
Package | Neutral Bag + Export Carton & Pallet, OEM Custom Packaging Available |
Lead Time | 3-7 Days for Stock Sizes, 15-20 Days for Custom & High-strength Models |
Product Core Advantages
Precision Pilot Recess Anti-offset Design
Equipped with a central positioning pilot recess, the bolt achieves automatic alignment during installation, effectively solving assembly deviation and skew problems. It greatly improves assembly accuracy and consistency, perfectly meeting the high-precision fastening requirements of molds and precision equipment.
Low-profile Thin Head for Narrow Clearance
The optimized low-height head reduces protrusion and avoids interference with surrounding components. It is specially designed for compact equipment, narrow cavity assembly and low-protrusion installation scenarios where standard bolts cannot be applied.
High-grade carbon steel and stainless steel materials with heat treatment ensure stable hardness and tensile strength. Precision thread rolling process guarantees tight meshing and long service life without slipping or deformation under frequent vibration and clamping conditions.
Wide Compatibility & Full-scenario Adaptation
Standard metric coarse thread with complete size coverage and multiple surface treatments. Suitable for indoor precision workshops, humid processing environments and outdoor precision equipment, providing reliable fastening solutions for high-end manufacturing.
Grade Selection Guide
Grade 8.8 Black Oxide Bolt (Economical Precision Type)
Cost-effective precision grade with black anti-rust treatment, ideal for general precision tooling, small molds and conventional automation equipment positioning.
Grade 10.9 Zinc Plated Bolt (Anti-rust Precision Type)
Enhanced mechanical strength with electro-galvanized finish, suitable for humid precision workshops, automated production lines and automotive precision structural parts.
Grade 12.9 High-strength Bolt (Heavy-duty Precision Type)
Ultra-high tensile and fatigue resistance, designed for high-end molds, precision machine tools, robot modules and core components of high-precision automation equipment.
Stainless Steel Bolt (Corrosion-resistant Precision Type)
304/316 stainless steel with excellent anti-corrosion performance, applicable for chemical, food, humid and outdoor precision instrument assembly scenarios.
DIN6912 vs DIN912 Difference
DIN6912 Low Head Pilot Bolt: Features thin low-profile head and central positioning recess, focusing on high-precision anti-offset assembly and narrow space installation. No component interference, specially customized for precision intelligent manufacturing equipment.
DIN912 Standard Socket Bolt: Standard head height without positioning structure, prone to assembly deviation and structural interference. Only suitable for ordinary low-precision general fastening scenarios.
Production Process
Premium Raw Material Selection: Adopt high-purity carbon steel and stainless steel bars to ensure stable precision and mechanical performance.
Integrated Cold Heading Forming: One-piece forming of thin head and pilot recess with dense structure and accurate positioning size.
Precision Thread Rolling: thread with full gauge inspection to ensure smooth assembly and stable meshing.
Head Finishing & Deburring: Flat and smooth head surface with uniform size to avoid assembly interference.
Professional Anti-corrosion Treatment: Multiple surface processes adapting to various precision working environments.
Strict Batch Quality Inspection: Comprehensive detection of positioning accuracy, dimension, hardness and thread to guarantee stable batch quality.
Application Industries
Automation Industry: Robot modules, pipeline tooling plates, servo brackets and compact equipment fixing.
Mold & Tooling Industry: Precision mold clamping, jig positioning and fixture assembly.
Precision Machinery: CNC equipment, optical platforms, testing instruments and narrow gap fastening.
Automotive & Rail Transit: Vehicle precision structural parts, instrument brackets and chassis accessory assembly.
Electronic & Electrical Equipment: High-end control cabinets, precision equipment shells and lightweight device assembly.
Intelligent Manufacturing: New energy equipment precision modules and smart device core fastening points.
Why Choose Our DIN6912 Bolts
We specialize in the mass production of high-precision DIN6912 low head pilot recess socket bolts. Complete grades and finishes, strict DIN standard compliance, accurate positioning structure and stable precision performance. Sufficient stock for precision and high-strength specifications, reliable batch quality and customizable non-standard sizes. We provide one-stop professional high-precision fastening solutions for global intelligent manufacturing and precision equipment customers.
For high precision DIN6912 low head positioning bolts, high-strength thin head socket screws and custom industrial fasteners, please feel free to contact us for professional technical support and exact quotation.
