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Leading UK Manufacturer of BS 529 Imperial Collared Eyebolts.

We specialise in the precision manufacture and supply of high-integrity imperial collared eyebolts produced in strict accordance with BS 529 specifications, engineered for safety-critical lifting, rigging, and structural anchoring.

Utilising advanced closed-die drop forging and upset forging processes, we compress and align the material's grain flow along the contours of the component, delivering elite tensile strength, ductility, and fatigue resistance compared to machined or cast alternatives. Whether for heritage equipment maintenance, legacy machinery support, or bespoke engineering projects, we provide a complete, certified manufacturing solution.


collared eyebolts imperial to BS529 diagram drawing

BS529 Collared Eyebolts (Imperial) Technical Dimensions and Safe Working Load Specifications
A B D E F G H SWL Vertical Only Weight Each
inches mm mm mm mm mm mm Tonnes CWT kgs
3/8 21 7 14 9 19 17 0 5 0.1
1/2 28 10 19 11 25 22 0 10 0.1
5/8 36 12 24 14 32 28 0 18 0.3
3/4 43 14 28 17 38 33 1 8 0.5
7/8 50 17 33 20 44 39 2 0 0.6
1 57 19 38 22 51 44 2 15 1.1
1.1/8 64 21 42 25 57 50 3 10 1.6
1.1/4 71 24 48 28 64 55 4 10 2.1
1.3/8 85 28 57 33 76 67 5 10 3.6
1.1/2 85 28 57 33 76 67 6 10 3.6
1.3/4 101 33 67 39 89 77 9 0 5.6
2 115 38 76 44 102 89 12 0 9.1
2.1/4 128 42 85 50 115 101 15 0 15.0
2.1/2 143 48 95 55 127 111 20 0 17.7
3 172 57 115 67 152 133 30 0 30.4