British Standard Fine

British Standard Fine (BSF) is a screw thread form, as a fine-pitch alternative to British Standard Whitworth (BSW) thread. It was used for steel bolts and nuts on much British machinery, including cars, prior to adoption of Unified, and later Metric, standards.

T-Nut-Round 1/4 BSF

gms
F014
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gms
F015
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Cage For Nut (Zinc) All Size

gms
F067
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Nut + Cage 1/4 BSF

gms
F067D
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Nut + Cage 5/16 BSF

gms
F067E
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Nut (For Cage) 3/8 BSF

gms
F067F
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Nut 1/4 BSF

gms
F103
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Nut 1/4 BSF Self Locking

gms
F103L
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Nut 5/16 BSF

gms
F104
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Nut 5/16 BSF Self Locking

gms
F104L
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Nut 5/16 BSF Slotted

gms
F104S
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Nut 3/8 BSF

gms
F105
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Nut 3/8 BSF Self Locking

gms
F105L
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Nut 3/8 BSF Slotted

gms
F105S
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Nut 7/16 BSF

gms
F106
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Nut 1/2 BSF (Aero)

gms
F106L
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Nut 1/2 BSF

gms
F107
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gms
F107A
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Nut 9/16 BSF

gms
F108
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Nut 9/16 BSF Self Locking

gms
F108L
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