TCR Engineering tests bolts, nuts and washers to the IS 1367 series at its Mahape laboratory in Navi Mumbai. Proof load testing of bolts, screws and studs to IS 1367 (Part 3) and of nuts to IS 1367 (Part 6) is within its NABL scope (NABLT0726MH18640), alongside chemical analysis, hardness and heat treatment checks on the same fasteners.
- Bolts, screws and studs: IS 1367 (Part 3), proof load within the NABL scope
- Nuts: IS 1367 (Part 6), proof load within the NABL scope
- Related standards: ISO 898 (Parts 1 and 2) and ASTM F606, also within the NABL scope
- Service: fastener testing on the mechanical testing bench
Fasteners such as bolts, nuts, and washers may seem small, but their role in maintaining structural integrity is enormous. At TCR Engineering, we conduct rigorous material testing of fasteners in compliance with IS:1367 (Part-3):2002 and IS:1367 (Part-6):1994, checking that every component meets the required performance and safety standards.
Why IS:1367 Matters
The IS:1367 series lays down the mechanical and chemical properties for fasteners used in high-stress environments. Adhering to these standards is crucial for:
- Ensuring product reliability
- Preventing mechanical failure
- Meeting regulatory compliance
- Maintaining industry reputation
By testing as per these Indian Standards, manufacturers and suppliers demonstrate a commitment to quality, which is vital across sectors like automotive, construction, aerospace, and infrastructure.
Tests Conducted by TCR Engineering
We offer a full suite of tests to validate both chemical composition and mechanical performance:
Chemical Testing
- Bolt Sample
- Nut Sample
- Washer Sample
These tests verify the material grade and elemental composition, confirming that the alloy matches the grade specified for strength and corrosion resistance.
Mechanical & Heat Treatment Tests
- Wedge Load Test – Evaluates bolt performance under inclined loading
- Proof Load Test – Confirms a nut's ability to handle load without permanent deformation
- Hardness Test – Measures resistance to indentation, correlating to material strength
- Hardening Temperature – Validates proper heat treatment process
- Tempering Temperature – Assesses post-hardening stability and toughness
At TCR Engineering, every fastener is tested to the clauses of IS 1367 that the order names, and the report states the result against each requirement. This supports the safety, reliability and long-term performance of components used in critical assemblies.
Let your projects rest on a foundation of tested quality.
FAQ
What is IS 1367?
IS 1367 is the Indian Standard series on technical supply conditions for threaded steel fasteners. Part 3 sets the mechanical and performance properties of carbon and alloy steel bolts, screws and studs, and Part 6 covers nuts with specified proof loads. TCR Engineering tests fasteners to both parts at its Mahape laboratory in Navi Mumbai.
Which IS 1367 tests are within TCR Engineering's NABL scope?
Proof load testing of carbon and alloy steel bolts, screws and studs to IS 1367 (Part 3) and of nuts to IS 1367 (Part 6) is within TCR Engineering's NABL scope, certificate NABLT0726MH18640, as are the tensile properties listed against IS 1367 (Part 1) and proof load on stainless steel fasteners to IS 1367 (Part 14).
Does TCR Engineering also test fasteners to ISO 898 and ASTM F606?
Yes. TCR Engineering's NABL scope also carries ISO 898 (Part 1) tensile, elongation and proof load tests on bolts, screws and studs, ISO 898 (Part 2) proof load tests on nuts, and ASTM F606 proof load, tensile and wedge tensile tests on threaded fasteners, washers, direct tension indicators and rivets.