Push-on fasteners



Baker and Finnemore has manufactured precision pressings for many years supplying the likes of the lock industry with strip formed lock springs, the electronics industry with heat-sinks and heat-sink clips, stainless steel grab rings for easy fix plumbing fittings, retaining clips for infinite applications, bearing retainers for the automotive industry and many more.

We also manufacture non-standard disc springs and belleville washers, waved (curved) washers, knob clips, corner clips and cable clips. Precision pressings can be manufactured from spring steel, stainless steel, brass, aluminium, beryllium copper phosphor bronze etc.

The Starlocks® push on fasteners are manufactured from finest quality high carbon steel and are specially heat treated to ensure secure holding quality. Starlocks® fasteners simply push on to the shaft to give an instant fix and grip, thus eliminating costly threading and grooving operations. Once fixed in position, the Starlocks® push-on fasteners are so secure that they cannot be removed without destruction.

The majority of our Starlocks® push-on fastener range can be supplied assembled with a cap to conceal the fixing and enhancing the appearance.

Starlocks® Push on Fasteners are available with or without a decorative cap. The standard dome and standard deep axle caps are manufactured from Stainless steel whilst the extra deep axle cap is manufacture from steel and electro zinc plated. To satisfy customer demands the caps can be made from other metals dependent on material specification and volume required. The caps hide the end of the axle and the Starlock push on fastener when assembled to provide a cosmetic appearance.

Captivated Starlock push-on fasteners are available in three distinct styles Dome Axle Cap, Deep Axle Cap and Extra Deep Axle Cap.

Starlocks® Push On Fasteners Advantages:

  • RoHS compliant.7031.png
  • Suitable for plain shafts.
  • Can replace circlips, cotterpins etc.
  • No need for screw threads.
  • Permanent fixing.
  • Eliminates tolerance stacking.
  • Low cost assembly solutionDT6491.png.
  • Can be automated.
  • Dedicated engineering resource.
  • Pressing capacity up to 60 tonnes.
  • In house tool design.
  • In house Toolroom.
  • Sample development.
  • In house heat treatment & finishing.
  • Manufactured in the United Kingdom.

Special Starlocks® Capped & Uncapped (Axle Caps, Dome Caps, Deep Axle Caps)

  • To suit non standard shaft sizes / shapes. (Rectangular, Square, Triangular, etc).Deep_Axle_Capped_1.png
  • Sample development service.
  • Alternative materials & finishes.


Carbon Spring Steel and Stainless Steel.

Surface Finish

Starlock® Push-On Fasteners can be supplied in Bronze and Varnish, Delta Protekt or in Mechanical Zinc plated finishes and certain sizes are available in Stainless Steel.

Starlocks® Mechanical Zinc Plated

Mechanical Zinc Plating is universally recognised, as the answer to ensuring products have no hydrogen embrittlement.

Starlock® Bronze & Varnish

BV6491.pngThere are two ranges of standard spring steel Starlocks®: one range for imperial sizes and the other for metric. For identification purposes a colour code is used to denote the ranges. The imperial spring steel Starlocks are coloured Blue and the metric is coloured Bronze. The Starlocks are then given a thin varnish coating to provide a high level of finish. This finish will not protect against corrosion but is adequate for the protection of the Starlocks® in most dry environments.

Starlocks® Stainless Steel Push On Fasteners

There are many applications where the Starlocks® requires a high level of corrosion resistance or it is unsuitable to use a plated finish. A limited range of Starlocks® have been manufactured from austenitic stainless steel and are available to provide the answer.


External fixing washers: for use not only on precision machined shafts but also on tubes, cast parts, plastic shafts and studs. The Starlocks® Push-On Fasteners are pushed on to the shaft causing the prongs to grip the shaft tightly, thus locking the washers in place.