Hardness Testing
Rockwell (HRC/HRB) and Brinell hardness testing per ASTM E18 to verify heat treatment quench and temper properties.
ASTM E18 / ISO 6508
Quality Commitment
Precision Manufacturing & Zero-Defect Quality Policy
At Stud Bolt India, quality assurance is embedded in every stage of our manufacturing process. We maintain an ISO 9001:2015 certified Quality Management System (QMS) dedicated to delivering high-integrity industrial fasteners for high-pressure, extreme-temperature, and corrosive service environments.
Our core mission is to supply stud bolts, heavy hex nuts, bolts, screws, threaded rods, and washers produced from certified premium raw materials. Every batch undergoes rigorous quality control checks against international engineering specifications including ASTM, ASME, DIN, ISO, BS, and EN standards. From initial raw bar stock verification to final seaworthy export packing, our quality framework guarantees total reliability and complete heat traceability for international procurement teams.
Strict QA/QC Framework
Comprehensive Quality Control System
Our multi-stage quality control process ensures that dimensional tolerances, mechanical properties, and surface protection exceed international client requirements.
100% Material PMI
Incoming bar stock verification using XRF/OES Positive Material Identification.
Dimensional Inspection
Thread pitch, length, and diameter checked with calibrated optical comparators.
Heat Traceability
Permanent grade and heat number stamping on all studs and nuts.
EN 10204 3.1 Certification
Full material test reports supplied with physical and chemical test results.
100% Inspected
Zero Defect Policy
In-House QA Testing
Advanced Fastener Testing Facilities
Our state-of-the-art testing laboratory conducts comprehensive mechanical, physical, and chemical evaluations to verify material integrity prior to shipment.
Tensile & Yield Testing
Universal Testing Machine (UTM) evaluation of ultimate tensile strength, yield strength, and percentage elongation.
ASTM A370 / ISO 6892
Corrosion Testing
Pitting and crevice corrosion resistance testing for duplex, super duplex, and nickel alloys in harsh marine environments.
ASTM G48 / Salt Spray
Fatigue & Impact Testing
Charpy V-Notch impact testing at low temperatures down to -101°C for ASTM A320 L7 and cryogenic applications.
ASTM E23 / Charpy V-Notch