Send a part number, a photo, or a whole BOM — we supply it and stand behind it. Worldwide shipping to 80+ countries.

OSG 5/16"-24 UNF Spiral-Flute Tap - Spiral-Flute Taps for Steel & Stainless Steel
OSGSpiral-Flute Taps for Steel & Stainless Steel

OSG 5/16"-24 UNF Spiral-Flute Tap

The OSG Spiral Flute Tap (5/16"-24 UNF, MPN 1732908) is a 3-flute tap with a modified bottoming chamfer and H3 / 2B-3B tolerance class, designed for threading steel and stainless steel. 3G Electric interprets your…

SKU 3G-OTH-218918

Brand
OSG
Item
5/16"-24 UNF Spiral-Flute Tap
Category
Spiral-Flute Taps for Steel & Stainless Steel
Available to Order
Trade pricing by quote — replies within 24h
Qty
WhatsApp an engineerMessage via Telegram
No account needed — your quote request goes straight to our engineers. A free account lets you track quotes and re-order faster.
Worldwide Shipping
Air & sea freight
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

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
1732908
Type
H3 / 2B-3B, Modified Bottoming Chamfer
Flute
3

Technical Documents

No technical documents available for this product.
Request documentation
Not sure this is the right part? Get a recommendation.

Need installation or engineering help?

Installation, commissioning, maintenance plans, system design, and bundled product + service quotes — one team handles the full scope.
Talk to an engineer

Ask a question

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

Product Description

The OSG Spiral Flute Tap (5/16"-24 UNF, MPN 1732908) is a 3-flute tap with a modified bottoming chamfer and H3 / 2B-3B tolerance class, designed for threading steel and stainless steel. 3G Electric interprets your demand for this OEM-specified tool, sources it across our 14 industrial departments, and provides a quoted price with technical support grounded in our specialist depth in controls and pumps.

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 spiral flute design evacuates chips upward, preventing clogging. The modified bottoming chamfer allows threading close to the bottom of the hole, making it ideal for automotive, aerospace, and general manufacturing applications.

What are the specifications of the OSG spiral flute tap 5/16-24 UNF?

The OSG tap has a 5/16-24 UNF thread size, H3 / 2B-3B tolerance, 3 flutes, and a modified bottoming chamfer. It is designed for threading blind holes in steel and stainless steel. The manufacturer part number is 1732908. These specs ensure precise thread fit and chip evacuation.

Where to buy OSG taps in worldwide?

3G Electric supplies OSG taps worldwide. As a global industrial distributor, we handle full logistics, customs clearance, and delivery to your location. Contact us for availability and lead time. We source and deliver genuine OSG cutting tools to support your manufacturing operations anywhere in the world.

How to select the right OSG tap for steel?

For steel and stainless steel blind holes, choose a spiral flute tap like this OSG 5/16-24 UNF model. The H3 / 2B-3B tolerance ensures proper thread fit. Consider hole depth: a modified bottoming chamfer allows threading close to the bottom. Always match tap material and coating to workpiece hardness for best tool life.

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.

You might also need

Burners & Combustion Pumps & Compressors Spare Parts All Products

Compatible alternatives & equivalents

Cross-referenced by specification & description
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 3 flutes to lift chips upward, preventing clogging. Tolerance class H3 / 2B-3B. Thread size 5/16"-24 UNF
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 3 flutes to lift chips upward, preventing clogging. Tolerance class H3 / 2B-3B. Thread size 5/16"-24 UNF
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer for threading close to the hole bottom. 3-flute design lifts chips upward to prevent clogging. Tolerance class H3 / 2B-3B. Suitable for UNF threads in general manufacturing applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer for threading close to the hole bottom. 3-flute design lifts chips upward to prevent clogging. Tolerance class H3 / 2B-3B. Suitable for UNF threads in general manufacturing applications
OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1733008)
OSG
OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1733008)
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 3-flute design for upward chip evacuation. Tolerance class H3 / 2B-3B. Thread size 3/8"-24 UNF
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features a modified bottoming chamfer and 3-flute design for upward chip evacuation. Tolerance class H3 / 2B-3B. Thread size 3/8"-24 UNF
OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1732808)
OSG
OSG Spiral Flute Tap: 5/16"-18 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1732808)
OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1733001)
OSG
OSG Spiral Flute Tap: 3/8"-16 UNC, H3 / 2B-3B, 3 Flute, Modified Bottoming Chamfer (MPN 1733001)

More from OSG

View all OSG parts
OSG spiral-flute tap for threading blind holes in steel and stainless steel. Features a #10-24 UNC thread size, H3 tolerance (2B-3B fit), 3 flutes, and bottoming chamfer. The spiral flute design lifts chips upward, preventing clogging in deep or blind holes. Suitable for general manufacturing applications requiring precise internal threads
OSG
OSG spiral-flute tap for threading blind holes in steel and stainless steel. Features a #10-24 UNC thread size, H3 tolerance (2B-3B fit), 3 flutes, and bottoming chamfer. The spiral flute design lifts chips upward, preventing clogging in deep or blind holes. Suitable for general manufacturing applications requiring precise internal threads
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes, H6 / 2B-3B tolerance, and modified bottoming chamfer. Chip evacuation upward prevents clogging. Suitable for automotive, aerospace, and general manufacturing applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. Features 3 flutes, H6 / 2B-3B tolerance, and modified bottoming chamfer. Chip evacuation upward prevents clogging. Suitable for automotive, aerospace, and general manufacturing applications
Spiral-flute tap for threading blind holes in steel and stainless steel. M16x2 metric thread, 3 flutes, D7 / 4H-6H tolerance class, modified bottoming chamfer. Chip-lifting flute design prevents clogging in deep-hole applications
OSG
Spiral-flute tap for threading blind holes in steel and stainless steel. M16x2 metric thread, 3 flutes, D7 / 4H-6H tolerance class, modified bottoming chamfer. Chip-lifting flute design prevents clogging in deep-hole applications
This spiral-flute tap is designed for threading blind holes in steel and stainless steel. The 4-flute design with modified bottoming chamfer facilitates chip evacuation upward, reducing clogging. It is suitable for general manufacturing applications requiring precise internal threads
OSG
This spiral-flute tap is designed for threading blind holes in steel and stainless steel. The 4-flute design with modified bottoming chamfer facilitates chip evacuation upward, reducing clogging. It is suitable for general manufacturing applications requiring precise internal threads
Spiral-flute tap with 3 flutes, H7 / 2B-3B tolerance, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward to prevent clogging. Suitable for general manufacturing applications requiring UNF threads
OSG
Spiral-flute tap with 3 flutes, H7 / 2B-3B tolerance, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward to prevent clogging. Suitable for general manufacturing applications requiring UNF threads
Metric spiral-flute tap with M20x2.5 thread size, D7 / 4H-6H tolerance class, 4 flutes, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel; the spiral flute evacuates chips upward to prevent clogging in deep holes
OSG
Metric spiral-flute tap with M20x2.5 thread size, D7 / 4H-6H tolerance class, 4 flutes, and modified bottoming chamfer. Designed for threading blind holes in steel and stainless steel; the spiral flute evacuates chips upward to prevent clogging in deep holes
OSG spiral flute tap for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging in deep or blind holes. Modified bottoming chamfer allows threading close to the hole bottom. Thread size #8-32 UNC, tolerance class H3 / 2B-3B, 2 flutes
OSG
OSG spiral flute tap for threading blind holes in steel and stainless steel. The spiral flute design evacuates chips upward, preventing clogging in deep or blind holes. Modified bottoming chamfer allows threading close to the hole bottom. Thread size #8-32 UNC, tolerance class H3 / 2B-3B, 2 flutes
Metric spiral-flute tap for threading blind holes in steel and stainless steel. M42x3 thread, D10 / 4H-6H tolerance, 4-flute design with modified bottoming chamfer. Chip evacuation upward prevents clogging, enabling threading close to hole bottom
OSG
Metric spiral-flute tap for threading blind holes in steel and stainless steel. M42x3 thread, D10 / 4H-6H tolerance, 4-flute design with modified bottoming chamfer. Chip evacuation upward prevents clogging, enabling threading close to hole bottom