Standards
Surface Treatments
Certifications
- ISO 9001 - 2015 Certified
- PED 2014/68/EC
- NACE MR0175/ISO 15156-2
- NORSOK M-650
- DFAR
- MERKBLATT AD 2000 W2/W7/W10
About TorqBolt QA-QC
TorqBolt Pvt Ltd manufactures precision aerospace, motorsport, and industrial fasteners. Head office and quality-control bench: Mumbai. Production facility: Rajkot. The 12pointbolt.com site is the dedicated hub for the 12-point (bi-hex / double-hex) external-drive bolt geometry.
Quality Systems
- AS9100D: aerospace quality management system
- ISO 9001:2015: general quality management system
- NORSOK M-630: offshore oil-gas material data sheet
- NACE MR0175 / ISO 15156: sour-service H2S compliance
- AMPP (formerly NACE): corrosion-engineering qualification
Manufacturing Capability
- CNC turning, threading, milling, grinding
- Heat treatment (solution + age, oil quench, vacuum)
- Surface treatment (passivation, black oxide, plating)
- Stamping (manufacturer ligature + alloy grade per lot)
- QC: digital micrometer, height gauge, optical comparator, hardness
- Documentation: MTC 3.1 standard, MTC 3.2 critical-service
Material Capability
A286, Inconel 718, Ti-6Al-4V (Grade 5), MP35N, Custom 465, AISI 8740 chromoly, AISI 4340, 17-4 PH, H-11 tool steel, L19 race-grade alloy steel, super duplex 2507, Incoloy 925, and most aerospace and oil-gas grades. For deep metallurgy on individual alloys, see the TorqBolt micro-site network: alloya286.com, duplex2507.com, incoloy925.com.
Contact
- Email: info@torqbolt.com
- Phone: +91-22-66157017
- WhatsApp: wa.me/912266157017
- Parent: torqbolt.com
Frequently asked questions
What is a 12-point bolt?
A 12-point bolt has 12 splines arranged every 30 degrees on the OUTSIDE of the bolt head, also called a bi-hex or double-hex bolt. The 12 external splines provide twice the wrench-engagement angles of a standard hex head, allowing higher applied torque before cam-off, which is why aerospace and motorsport applications adopt the geometry.
Are 12-point bolts the same as ISO 14579?
No. ISO 14579 specifies an INTERNAL hexalobular socket head (similar to Torx) recessed inside a cap screw. External 12-point bolts under MS21250 / NAS1351 / AS3216 use an EXTERNAL bi-hex head driven by a 12-point socket wrench. Both involve 12 features but on different sides of the bolt head and require different drivers.
Which alloys does TorqBolt manufacture 12-point bolts in?
TorqBolt produces 12-point bolts in A286 (UNS S66286), Inconel 718 (UNS N07718), Ti-6Al-4V Grade 5, MP35N (UNS R30035), Custom 465 H1025, AISI 8740 chromoly heat-treated, AISI 4340, 17-4 PH, H-11 tool steel, and L19 race-grade alloy steel. Choice depends on tensile target, service temperature, and corrosion environment.
Is TorqBolt AS9100D certified?
Yes. TorqBolt operates under AS9100D Rev D and ISO 9001:2015 quality management systems, audited annually by the registrar. NORSOK M-630 and NACE MR0175 / ISO 15156 qualifications cover offshore and sour-service applications. Mill test reports MTC 3.1 standard and MTC 3.2 critical-service witness are issued with every lot.
What lead time should I expect?
Stock alloys (A286, AISI 8740, AISI 4340, 17-4 PH, 316 stainless) ship in 4 to 6 weeks. Specialty alloys (Inconel 718, MP35N, Custom 465, Ti-6Al-4V, L19) ship in 8 to 12 weeks depending on raw-bar lead time at the alloy producer. Critical-service orders requiring third-party witness inspection (MTC 3.2) add 1 to 2 weeks for witness scheduling.
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