Transcription of Hex Bolts - Blacks Fasteners
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August 2007 Quality Fasteners Since 1935 Bolts - RECOMMENDED TIGHTENING TORQUE CLASS Stress Area Core Area Tensile StrengthProof StrengthShear StrengthRecommended Tightening Torque(mm)(mm )(mm )(kN)(kN)(kN)Plain (Nm)Zinc (Nm)HDG (Nm) / Yield / Shear Strength Tightening TorqueHex BoltsThe tightening torque values given in the above table serve only as a guide. A k factor of has been used which assumes threads are plain finish, burr free with a light oil coating. It should be noted that these figures are based on the first tightening of single assemblies in isolation.
v.. August Qualit asteners Since HEX BOLTS - RECOMMENDED TIGHTENING TORQUE CLASS 8.8 Size Pitch Stress Area Core Area Tensile Strength
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