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OSG 1650511408 Spiral-Flute Tap 5/16-24 UNF H4 Bottoming Chamfer - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG 1650511408 Spiral-Flute Tap 5/16-24 UNF H4 Bottoming Chamfer

The OSG Spiral Flute Tap (5/16"-24 UNF) is a bottoming-chamfer, 3-flute tap made from V-coated powdered metal, with an H4 / 2B-3B tolerance class (MPN 1650511408). Designed for threading steel and stainless steel, it…

SKU 3G-OTH-217837

Brand
OSG
Item
1650511408 Spiral-Flute Tap 5/16-24 UNF H4 Bottoming Chamfer
Category
Spiral-Flute Taps for Steel & Stainless Steel
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Local availability & support — Singapore

Local office
20 Woodlands Link #09-05, Singapore 738733
Phone
+65 8878 8355
Delivery
Same-day or next-business-day delivery within Singapore for in-stock items; 7–14 days for factory-order parts from Europe.
Payment
Invoicing in SGD. PayNow, bank transfer, and corporate PO accepted.
Ships to
Singapore

Technical Specifications

OSG
Manufacturer Part Number
1650511408
Type
H4 / 2B-3B, Bottoming Chamfer, V Coated Powdered Metal
Flute
3

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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Product Description

The OSG Spiral Flute Tap (5/16"-24 UNF) is a bottoming-chamfer, 3-flute tap made from V-coated powdered metal, with an H4 / 2B-3B tolerance class (MPN 1650511408). Designed for threading steel and stainless steel, it is supplied by 3G Electric, a global industrial solutions provider that interprets customer demand and delivers genuine equipment across 14 departments, with specialist depth in combustion, pumps and controls.

Frequently Asked Questions

What is the OSG spiral flute tap 5/16-24 UNF used for?

This OSG spiral flute tap is designed for threading blind holes in steel and stainless steel. Its V-coated powdered metal construction and bottoming chamfer allow it to cut threads close to the bottom of a hole, making it ideal for automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG 1650511408 tap?

The OSG 1650511408 is a spiral flute tap with thread size 5/16-24 UNF, H4 / 2B-3B tolerance, 3 flutes, and a bottoming chamfer. It is made of V-coated powdered metal, designed for threading blind holes in steel and stainless steel. The H4 limit ensures precise thread fit for class 2B-3B applications.

Where to buy OSG taps in worldwide?

You can source OSG taps, including the 1650511408 spiral flute tap, through 3G Electric. As a global industrial equipment distributor, we handle full logistics, customs clearance, and delivery to worldwide destinations. Contact us for availability and lead time on this and other OSG threading tools.

How to select the correct OSG tap for stainless steel?

For stainless steel, choose a tap with a spiral flute design to evacuate chips upward in blind holes. The OSG 1650511408 features a V-coated powdered metal body and H4 / 2B-3B tolerance, providing wear resistance and precise thread cutting. Ensure the tap matches your hole size and thread class for optimal performance.

Used in

Common applications for OSG
Automotive engine block production — OSG micro drill bits for oil gallery and coolant passage drilling in cast iron
Medical device manufacturing — OSG micro drill bits for drilling bone screw pilot holes in stainless steel implants
Aerospace component machining — OSG micro drill bits for fastener holes in titanium alloy structural parts
Mold and die making — OSG micro drill bits for cooling channel drilling in hardened tool steel (HRC 45-50)
Electronics enclosure fabrication — OSG micro drill bits for precision holes in aluminum alloy housings (with appropriate coating selection)
General engineering job shops — OSG micro drill bits for small-diameter hole drilling in mild steel and alloy steel parts

OSG Products

3G Electric supplies OSG spiral-flute taps for steel & stainless steel. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a bottoming chamfer for threading close to the hole bottom and 2 flutes for chip evacuation upward. V coated powdered metal construction with H2 / 2B-3B tolerance class
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Spiral-flute tap for threading blind holes in steel and stainless steel. Features a bottoming chamfer for threading close to the hole bottom, 3 flutes for chip evacuation, and V coated powdered metal construction. Tolerance class H4 / 2B-3B
Bottoming-chamfer spiral-flute tap with 3 flutes, made of V-coated powdered metal. Tolerance class H3 / 2B-3B. Designed for threading blind holes in steel and stainless steel
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Bottoming-chamfer spiral-flute tap with 3 flutes, made of V-coated powdered metal. Tolerance class H3 / 2B-3B. Designed for threading blind holes in steel and stainless steel

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