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 EN 14399/4-6 standard.

METRIC - STANDARD FLAT WASHERS (NORMAL SERIES, GRADE A). ISO 7089. Nominal Size Class 140 HV & Class 200 HV metric washers meet the majority.

HV-BOLTS FOR STRUCTURAL BOLTING ASSEMBLIES According to EN 14399-4 (previously DIN 6915) and washers Defined friction properties.

1. The Washer will be according to ISO 7089 . 2. Material High grade carbon/alloy steel, Mild steel & stainless steel etc. 3. Hardness According to 100 HV, 200 HV, 300 HV or more as per requirement. 4. Coating & Marking will be done as per requirement. 5. All dimensions are in millimetres.

A thin, flat circular part with a centrally located hole. Class 300 HV washers are also hardened and tempered. Applications/ Advantages. Washers are for assembly around a bolt or screw, between the bearing surface of the fastener and the part to which it is attached.

Washer (hardware) Assorted washers: flat, split, star and insulating. A washer is a thin plate (typically disk-shaped, but sometimes square) with a hole (typically in the middle) that is

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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

ISO 7091 Washer Dimensions (100 HV Min.) Nominal Size of 1.4.2 Mean value of the k-factor (km) and coefficient of variation of the k-factor.

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

Washers. 82. 13. IS 1367: Technical Supply Conditions for Threaded Steel Fasteners Vickers Hardness for Nuts with Fine Pitch Thread, HV.