Home > Range of fasteners available from Darwin Bolt Supplies

Range of fasteners available from Darwin Bolt Supplies

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Darwin Bolt Supplies , a branch of Normist, has over 20000 products from stainless steel bolts to back supports, lifting gear to left hand threads, marine cable to chemical anchors.

The wide range of fasteners available from Darwin Bolt Supplies includes the following:

High Tensile

  • Grade 5 and Grade 8 in UNC / UNF Thread
  • Metric 8.8 Coarse and Fine
  • Available in plain, zinc and hot dipped galvanised

Mild Steel Hex and Cup Head

  • Grade 2 BSW and Metric Class 4.6
  • Available in plain, zinc and hot dipped galvanised

Purlin bolts

  • Mild steel and high tensile

U-Bolt products

  • Galvanised

Structural assemblies

  • Class 8.8 galvanised
  • Test certificates available on request

Plow / Track bolts and nuts

  • Imperial sizes to suit earthmoving equipment

Threaded rod

  • Steel available in plain, zinc, hot dipped galvanised in mild steel and high tensile
  • Stainless steel in G304 and G316
  • Brass and nylon
  • Coupling nuts and square washers stocked in all sizes
  • Aluminium available upon request

Petroleum stud bolts and nuts

  • To ASTM A193 / A193M Monel and B7, B16, B8, B8M, B5 and B6 available

Socket head products

  • Button, cap screw, CSK head
  • Grub and shoulder screws in high tensile, plain and zinc


  • In mild steel and high tensile
  • Stocked in plain, zinc and galvanised
  • Acme, cage, castle, conelock, coupling, deep, dome, flange, left hand, lock, manifold, nyloc, thin nyloc, plow, slotted, speed, square, tee, track, wedge, wheel and wing


  • Mild steel in plain, zinc and galvanised, full range of structural, high tensile, stainless and brass, belleville, cup, disc-lock, elongated, extra large, load indicator, mudguard, nylon, plug, red fibre, schnorr, sealing (neoprene), shim, spring, square, taper and tooth lock

Cyclone assembly roof screws

  • Colorbond colours
  • Wall cladding screws

Self drilling screws

  • Class 2 (Zinc) and Class 3 (Galvanised) in Hexagon, Wafer, Pan, Countersunk, Self Embedding, Button and Bugle Head
  • Bugle Batton, Chipboard, Drywall, Stitching, Stainless Steel Screws, Sealing Plates and Sealing Washers

Self tapping screws

  • Stainless steel and zinc plated, countersunk and pan head types

Metal thread screws (Available in Imperial and Metric sizes)

  • Stainless steel and zinc plated, brass and nylon

Masonry fixings

  • Sleeve anchors, through bolts, drop-in anchors, loxins, chemical injection and stud bolts, chemical capsules, construction foam, metal pin anchors, nylon nail-in anchors, suspension and eye / hook bolt anchors, plastic wall plugs and toggles


  • All stainless steel and all aluminium, steel / aluminium, monel, sealed, truss, countersunk, grooved, multi grip and large flange heads in painted and anodised finish

Nutserts (Workshop kits available in Imperial or Metric)

  • Thinsheet and standard, monobolts, sheet grippers and other aircraft fasteners
  • Hand pliers and nose assemblies

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