Reference 70™ Bolts

Reference 70™ (REF 70™) are ISO grade 5.8 elevator bolts with a concave head and four lugs on the underside to help prevent rotation when tightening. The REF 70™ bolt, when coupled…

Brand4B
Bolt MaterialStainless Steel, Steel - self colour (on request), Steel (zinc plated)
  • Quoted to your quantity
  • Documentation on request
  • International delivery

Product Overview

Reference 70™ (REF 70™) are ISO grade 5.8 elevator bolts with a concave head and four lugs on the underside to help prevent rotation when tightening. The REF 70™ bolt, when coupled with the special oval washer, is ideal for steel elevator buckets in heavy-duty industrial applications on larger diameter pulleys over 50 cm in diameter. Because of this domed area under the bolt head, these bolts are not recommended for flat back plastic buckets, especially on thinner belts.

Technical Specifications

Brand4B
Bolt MaterialStainless Steel, Steel - self colour (on request), Steel (zinc plated)
Ref70 bolt - drawing
Ref70SizeSizeHead DiameterMax. TorquePackage QuantityPackage Weight
(mm)(in.)(mm)(Nm)(kgs)
M6 x 121/4 x 1/21751001.04
M6 x 20*1/4 x 3/41751001.18
M6 x 25*1/4 x 11751001.24
M6 x 301/4 x 1-1/41751001.48
M6 x 401/4 x 1-1/21751001.56
M8 x 205/16 x 3/423101002.08
M8 x 25*5/16 x 123101002.38
M8 x 30*5/16 x 1-1/423101003.54
M8 x 40*5/16 x 1-1/223101002.90
M8 x 505/16 x 223101003.24
M10 x 253/8 x 127181003.94
M10 x 30*3/8 x 1-1/427181004.44
M10 x 40*3/8 x 1-1/227181004.80
M10 x 45*3/8 x 1-3/427181005.08
M10 x 50*3/8 x 227181005.36
M10 x 553/8 x 2-1/427181005.50
M10 x 653/8 x 2-1/227181005.72
M12 x 301/2 x 1-1/435421007.44
M12 x 401/2 x 1-1/235421007.78
M12 x 451/2 x 1-3/435421008.12
M12 x 501/2 x 235421008.44
M12 x 551/2 x 2-1/435421009.08

* Available in stainless steel

Features

  • Steel / Stainless steel 304 & 316
  • Steel - ISO grade 5.8
  • Concave bolt head with 4 lugs on the underside to prevent rotation when tightening
  • Whitworth or metric
  • Bolt types: M6, M8, M10, M12

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