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28" Slipper Spring – Dacromet 8mm -
Rail Guard – Galvanised -
31" Slipper Spring – Dacromet 6mm -
Rocker Spring Assembly – 60mm Dacromet/Galvanised -
Square U Bolt 5/8" – Zinc -
Round U Bolt – Galvanised -
Square U Bolt – Galvanised -
Nylon Shackle Bush -
Shackle Bolt & Nut -
Tandem Spring Rocker “Y” Arm -
Apex “h” Long Tandem Rocker Hanger -
Shackle Plate – Galvanised -
Dumbjack Spring Hanger -
U-Clamp Axle Seat – Galvanised -
Axle Seat – Galvanised -
Fish Plate – Galvanised -
45mm Shackle Spring Hanger Kit – 9/16” -
Complete Spring Hanger Kit – Galvanised -
Rear Slipper Box -
Rear Spring Hanger 45mm -
Front Spring Hanger 45mm -
Jerry Can Holder -
Spring Washer – Galvanised -
Nyloc Nut – Galvanised
Viking Rollers is a Brisbane-based, Australian-owned supplier of trailer hardware and fasteners, serving trailer builders, marine dealers, chandlers and repair shops. The suspension range covers the 92200-series hardware dealers order by number: 45mm front and rear spring hangers, galvanised fish plates and axle seats, shackle plates in 63mm to 90mm hole centres, dumbjack hangers, and shackle bolts with matching nylon bushes in 1/2", 9/16" and 5/8" sizes.
Fastening options run from 92280-series galvanised square U bolts in widths from 24mm to 125mm, through 92270-series round U bolts and heavy-duty 5/8" zinc-plated square U bolts, to hi-tensile CMB-series coupling mounting bolts. Trailer springs include 28" and 31" slipper springs, centre and offset shackle springs, parabolic single-leaf springs and 60mm rocker spring assemblies rated to 4000kg per pair, alongside rated, stamped CHR-series safety chain and DSGR rated dee shackles.
Rounding out the category are galvanised and PVC mudguards with matching mudflaps, 92800-series rail guards, spare wheel carriers and Trailer Rescue hub holders, wheel studs and nuts in Holden and Ford patterns, plus R-clips, split pins, washers and hex bolts. Order by part number and request a quote for trade and wholesale supply, dispatched Australia-wide.
Frequently asked questions
What sizes of galvanised U bolts do you stock?
Square U bolts in the 92280-series run from 24mm to 125mm wide and 60mm to 200mm long, supplied with spring washers and hex nuts or nyloc nuts as listed per size. Round U bolts in the 92270-series cover 40mm to 50mm widths in 100mm to 175mm lengths with nyloc nuts, and heavy-duty 5/8" (16mm) zinc-plated square U bolts (UB4515, UB5017, UB6517) suit larger trailer applications. U bolts are sold in packs of 4.
Which boat trailer springs are available and what are their load ratings?
The range includes 31" (765mm x 45mm) slipper springs in 6mm thickness with pair ratings from 600kg to 1450kg, 28" (710mm x 45mm) slipper, centre shackle and offset shackle springs in 8mm thickness with pair ratings up to 1800kg, parabolic single-leaf springs in 600kg, 1000kg and 1400kg pair ratings, and 60mm rocker spring assemblies in 6, 7 and 9 leaf configurations rated from 2500kg to 4000kg per pair. The 31" 6mm springs take a 1/2" shackle bolt and the 28" 8mm springs take a 9/16" shackle bolt.
What wheel stud and nut patterns do you supply?
Zinc-plated 37mm UNF wheel studs come in 7/16" Holden pattern (92541) and 1/2" Ford pattern (92542), with matching UNF wheel nuts in zinc-plated or chrome finish. Blister-pack stud and nut sets are also available: ST716B (Holden pattern, set of 5) and ST12B (Ford pattern, set of 6).
How do I order or request a quote?
Send a quote request through the website with the part numbers and quantities you need - for example 92280-series U bolts, 92300-series spring kits or CHR-series safety chain. Viking Rollers is a Brisbane-based, Australian-owned trade and wholesale supplier with 30 years of experience, and orders are dispatched Australia-wide.