OSG Straight Flute Tap: 5/16"-18 UNC, H5 / 2B-3B, 4 Flute, Bottoming Chamfer (MPN 1005200508)
SKU 3G-OTH-211140
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Frequently Asked Questions
What is the OSG straight flute tap 1005200508 used for?
This OSG straight flute tap is designed for threading aluminum and non-ferrous materials. Its 4-flute design and bottoming chamfer allow it to cut threads close to the bottom of a blind hole, making it ideal for precision tapping in automotive, aerospace, and general manufacturing applications.
What are the specifications of the OSG 5/16-18 UNC tap?
The OSG tap has a thread size of 5/16-18 UNC, with an H5 tolerance for the tap and a 2B-3B class of fit for the nut. It features 4 flutes and a bottoming chamfer. The manufacturer part number is 1005200508. It is designed for use in aluminum and other non-ferrous metals.
Where to buy OSG taps in worldwide?
You can source OSG taps like the 1005200508 through 3G Electric, a global industrial equipment distributor. We handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time; we supply genuine OSG cutting tools for your manufacturing needs.
How to select the right OSG tap for aluminum?
For aluminum, choose a tap with a polished flute and a coating like TiN or uncoated for chip evacuation. The OSG straight flute tap with a bottoming chamfer is suitable for blind holes. Ensure the tap tolerance (H5) matches the required thread class (2B-3B). Always use proper cutting fluid for aluminum to extend tool life.
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Common applications for OSGOSG Products
3G Electric supplies OSG straight-flute machine taps for aluminum. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.















