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100 pcs of No. 4 MK I Bolt Head (size 0) USED fair / good condition

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Product Description

Original Item:  Head only, size 0


100 pcs of

Useable bolt head Good/Fair condition with deep ring around the firing pin hole (as pictured)

BB 8584

Long Branch, British and Savage markings mixed in.


Great post on No4 bolt sizes from gunboards forum:



"It seems to be generally accepted that No4 / No5 bolt heads should fall in the following range :
Size 0 = 0.620” – 0.625”
Size 1 = 0.625” – 0.630”
Size 2 = 0.630” – 0.635”
Size 3 = 0.635” – 0.640”

Whilst I don’t question that this information is printed somewhere, I have not been able to find the original source, the information I have found does not actually state the ‘starting’ dimension, only that the sizes are incrementally larger :

a) From “Parts Identification List Rifle No4 Mk1 and Mk1*” dated 1945
Bolt head 0 part number BB8584
Bolt head 1 part number BB8585
Bolt head 2 part number BB8586
Bolt head 3 part number BB8587"

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