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OSG Thread Forming Tap: 1/4"-28 UNF, H5 / 2B-3B, Bottoming Chamfer - General Purpose Thread-Forming Taps
OSGGeneral Purpose Thread-Forming Taps

OSG Thread Forming Tap: 1/4"-28 UNF, H5 / 2B-3B, Bottoming Chamfer

SKU 3G-OTH-236699

Brand
OSG
Item
Thread Forming Tap: 1/4"-28 UNF, H5 / 2B-3B, Bottoming Chamfer
Category
General Purpose Thread-Forming Taps
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Technical Specifications

OSG
Manufacturer Part Number
1400127901
Type
H5 / 2B-3B, Bottoming Chamfer, Black Oxide Cobalt
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OSG Products
3G Electric (S) Pte. Ltd. — Singapore

Frequently Asked Questions

What is OSG thread forming tap 1/4"-28 UNF used for?

This OSG thread forming tap creates internal threads in ductile materials like aluminum, brass, and steel without cutting chips. It is ideal for automotive, aerospace, and general manufacturing applications requiring strong, burr-free threads in blind or through holes.

What are the specifications of OSG thread forming tap 1/4"-28 UNF?

This OSG tap has a 1/4"-28 UNF thread size, H5 tolerance for 2B-3B class fit, bottoming chamfer for threading to the bottom of blind holes, and black oxide cobalt construction for wear resistance. The manufacturer part number is 1400127901.

Where to buy OSG thread forming tap 1/4"-28 UNF worldwide?

3G Electric supplies and delivers this OSG thread forming tap worldwide. We handle full logistics and customs clearance, sourcing genuine industrial equipment across 14 departments including cutting tools. Contact us for availability and lead time to your location.

How to select the right thread forming tap for aluminum?

For aluminum, choose a thread forming tap with a bottoming chamfer like this OSG 1/4"-28 UNF model. Ensure the tap has a suitable coating (black oxide cobalt here) for lubricity and use proper tapping fluid. Match thread class (2B-3B) to your hole tolerance for optimal fit.

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 general purpose thread-forming taps. We supply genuine products with in-stock availability on common SKUs, technical documentation, commissioning support, and warranty service — worldwide.

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