Products for bench top machinists | LittleMachineShop.com

Cap Screw, M8x40, Hex Head

Cap Screw, M8x40, Hex Head - Main image
$0.66 $0.95 In stock

Cap Screw, M8x40, Hex Head is a metric cap screw with a hex drive, offered by LittleMachineShop.com for bench top machinists. It is used on numerous machines, making it a practical fastener to keep on hand for routine maintenance and assembly.

  • Metric M8x40 cap screw
  • Hex head with hex drive
  • Brand: Sieg Industrial Group
  • SKU: 6661 (Standard)
  • Used on numerous machines
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Express Shipping · United States: $3.99

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

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Customer Reviews (5.0 / 5 · 5 reviews)

Ellie ★★★★★

I needed a few spares for my mini mill, and the 40mm length on these M8s was just right to get a solid hold without bottoming out. The hex drive seated cleanly with my Allen key too, no wobble at all.

Henry Q. ★★★★★

The hex head on these M8x40 bolts grips the wrench perfectly without any slipping. I used them to secure a milling vise and they fit the threads smoothly right out of the bag.

Nicholas ★★★★★

Finally a batch where all six bolts have clean, fully formed threads that start turning by finger. The hex drive fits my wrench perfectly with no wobble.