Products for bench top machinists | LittleMachineShop.com

Key, 3x16 mm

Key, 3x16 mm - Main image
$0.57 $0.95 In stock

This 3x16 mm key is a small drive component used on many of our machines. It drives the lead screw and is listed as item 266 on the SC4 parts list. The key is offered under the Sieg Industrial Group brand.

  • Size: 3x16 mm
  • Function: drives the lead screw
  • Used on many of our machines
  • Item 266 on the SC4 parts list
  • Brand: Sieg Industrial Group
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Customer Reviews (5.0 / 5 · 5 reviews)

Grace V. ★★★★★

I needed a replacement for the lead screw drive on my SC4, and this key slid into place perfectly—no filing or force required. The 3x16 mm spec was exact, and it's been running smoothly with zero wobble since the install.

Brian U. ★★★★★

Exactly 3x16 mm, so it dropped right into the lead screw slot on my SC4 lathe without any filing. The fit is snug and it drives the lead screw perfectly, no wobble at all.

Jason O. ★★★★★

Ordered this after my original one walked off, and the 3x16 mm sizing is spot-on for the SC4 lead screw. Machining is clean, no burrs or slop when I test-fit it. Shipping was quick enough that I had the lathe back together by the weekend.