The 'HV' mark comes from the German term 'Hochfest Vorgespannt'. This refers to a HV preloaded bolt, applied in a bolt/nut/washer assembly according to the 

This International Standard specifies the characteristics of normal-series, product-grade-A plain washers in the 200 HV and 300 HV hardness classes and of nominal sizes (nominal thread diameters) ranging from 1,6 mm to 64 mm inclusive. Washers of hardness class 200 HV are suitable for. ? hexagon bolts and screws of product grades A and ? in

HV washers are hardened and tempered washers and are used where higher load and tightening torque is required to tighten the bolt or stud bolt with the nuts. HV 

washer definition: 1. a flat ring of metal, rubber, or plastic that is put somewhere, especially between a screw or. Learn more.

Mining of mineral aggregate deposits; Reuse of waste slag from the manufacturing of iron and steel; Recycling of concrete

Washers of hardness class 200 HV are suitable for hexagon bolts and screws of product grades A and B in property classes up to and including 8.8; hexagon nuts 

in order to obtain a defined prestressing. 2 HV 300–370 HV washers, hot-dip galvanized, in accordance with EN 14399–6. HV bolng assemblies are relevant 

Brinell Hardness: Vickers Hardness: Rockwell Hardness: Tensile Strength: 100 HB: 105 HV - HRC: 335 N/mm 2: 101 HB: 106 HV - HRC: 338 N/mm 2: 102 HB: 107 HV

We use high MS, SS, carbon steel material and high alloy steel raw materials to achieve the required properties in this standard. There are five popular grades are, MS, HV 100 , HV 200, HV 300 & A4 which denote material hardness strength and their respective mechanical properties for HV 200 Washer. Grades, Grade HV 200 Chemical properties,

Looking for online definition of HV or what HV stands for? HV is listed in the World's largest and most authoritative dictionary database of abbreviations and acronyms The Free Dictionary

Information about the difference between HR (BS EN 14399-3) and HV (BS EN 14399-4) bolt assemblies UKCA & CE marked. Andrews Fasteners Ltd. The Fasteners Specialist +44 (0) 113