Products for bench top machinists | LittleMachineShop.com

Bolt, Shoulder

Bolt, Shoulder - Main image
$4.65 $6.29 In stock

This shoulder bolt is a replacement part for Sieg bench top machines, identified as part # 72 on the SC4 parts diagram (SC4-72). It is a genuine Sieg Industrial Group component, designed to meet the manufacturer's specifications for proper fit and function.

  • Replacement shoulder bolt for Sieg SC4 lathe
  • Part number SC4-72 for easy identification
  • Manufactured by Sieg Industrial Group
  • Suitable for bench top machinist applications
Before you pay

Check the method and total at checkout.

When it ships

Allow for processing time as well as the journey to you.

Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

View policy
If you need a refund

Keep your order number and contact the store to start.

Please contact us for the refund processing timeframe before returning an item.

View policy
Delivery costs

Review the cost for your destination and chosen service.

Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

View policy
Returning an item

Check the return conditions before sending anything back.

United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

View policy

Customer Reviews (4.8 / 5 · 5 reviews)

Zoe ★★★★★

Had a small wobble in my lathe's spindle lock before swapping this in. The bolt seated perfectly and that vibration is completely gone now. Exactly the right fit for my SC4.

William ★★★★★

The threads matched perfectly with my Sieg bench top machine—no wobble after tightening. Fit snugly and feels solid during operation, exactly what I needed.

Ellie ★★★★★

The thread matched perfectly and the shoulder sits flush against the casting, so no wobble at all. Installation took just a couple of minutes and the machine runs smoothly now.