Application
KASON-BW series bolt torsion testing machine is mainly used to check the material performance of bolts nuts, double-screw bolts etc., fastener and connection pairs of various grade 12.9, 10.9, 9.8, 8.8. Can measure the preload, fastening axial force F, yield fastening axial force, yield clamp force, limit clamp force, safety load, breaking load, torque T, angle etc.,
Fasteners include: Friction type high strength bolt, bearing type high strength bolt, tensile bolt with high strength, torsional shear type high strength bolt, High-strength big hex bolt, stud bolt, coach bolt, friction type high strength prestressed bolt connect sets, bearing type high strength prestressed bolt connect sets.

Standards:
ISO 16047: Fasteners -- Torque/clamp force testing
EN 14399-2: High-strength structural bolting assemblies for preloading.
DIN 2510-5: Bolted connections with reduced shank hexagon nuts.
DIN 2510-6: Cap nuts for use with bolts with waisted shank.
ASTM A320 / A320M: Standard Specification for Alloy-Steel and Stainless Steel Bolting for Low-Temperature Service;
ASTM A325: Standard Specification for Structural Bolts, Steel, Heat Treated, 120/105 ksi Minimum Tensile Strength;
ASTM A354:Standard Specification for Quenched and Tempered Alloy Steel Bolts, Studs, and Other Externally Threaded Fasteners.