We understand the criticality of our bolting products, these are made strictly to the requirements of API 20E - BSL 1, BSL 2, BSL 3. Following material grades are used to manufacture our products:
We have competence to adhere to the threading requirements of ANSI/ASME B1.1. To adhere to the mandatory API 20E requirement, external threading are UNR while its UN from internal threads. We ensure our equipments are always calibrated and our customers have access to such records.
- ASTM A193 Grades B7, B7M
- ASTM A194 Grades 2H, 2HM, 7, 7M
- ASTM A320 Grades L7, L7M, L43
Nuts feature internal threads that fit to create a strong attachment between the joining surfaces.
Bolt stud fasteners, the counterpart of nuts, feature an external, partially or fully threaded shaft.
Studs are metal rods with threads on both sides.
API certified products requiring API-20E boltings
Product Name API Standard Wellheads - Christmas Tree API 6A Piping Valves API 6D Subsea Pipeline Valves API 6DSS Blowout Preventers API 16A Choke and Kill Equipment API 16C Subsea Wellhead and Tree Equipment API 17D