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C2-75 Half Nuts

C2-75 Half Nuts

Single Half Nut

Single Half Nut

Pair of Half Nuts

Pair of Half Nuts

Some C2 Mini-Lathes are fitted with a pair of half nuts whilst others have a cover over the leadscrew and only a single half nut.

If your machine has a leadscrew cover and single half nut, a pair of half nuts may be fitted if the leadscrew cover is discarded - see our SC3 Mini-Lathe Half Nut Conversion Guide below for more details.

SIEG SC3 Mini-Lathe Half Nut Conversion Guide

A leadscrew cover helps to keep swarf out of the leadscrew threads but it also means only one half nut is fitted instead of two.

Some users prefer the traditional use of two half nuts to ensure greater accuracy and load capability. This conversion guide shows you how.

The guide applies to:
  • SIEG SC2
  • SIEG SC3
  • Those SIEG C2 Mini Lathes fitted with a leadscrew cover.

Click the image on the left to download the guide.

If you only require a single half nut, check to see if you also need the C2-270 Leadscrew Support Arm.

Code Machine Diameter Pitch Option
C2-75-MET Metric 16mm 1.5mm Pair
C2-75-IMP Imperial 5/8" 16TPI Pair
C2-75A-MET Metric 16mm 1.5mm Single
C2-75A-IMP Imperial 5/8" 16TPI Single
C2-75-MET C2-75-MET Leadscrew Half Nut - Metric (Pair) £20.59 Excl.VAT
£24.71 Inc.VAT
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C2-75-IMP C2-75-IMP Leadscrew Half Nut - Imperial (Pair) £20.59 Excl.VAT
£24.71 Inc.VAT
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C2-75A-MET C2-75A-MET Leadscrew Half Nut - Metric (Single) £10.31 Excl.VAT
£12.37 Inc.VAT
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C2-75A-IMP C2-75A-IMP Leadscrew Half Nut - Imperial (Single) £10.31 Excl.VAT
£12.37 Inc.VAT
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