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OSG Screw Thread Insert STI Tap: Thread Forming, 1/4"-28 UNF, H4 / 2B-3B - Thread-Forming STI Taps
OSGThread-Forming STI Taps

OSG Screw Thread Insert STI Tap: Thread Forming, 1/4"-28 UNF, H4 / 2B-3B

The OSG Screw Thread Insert STI Tap: Thread Forming (MPN 1626002208) is a thread-forming tap for 1/4"-28 UNF applications, specified as H4 / 2B-3B with a Modified Bottoming Chamfer. This tool is designed for creating…

SKU 3G-OTH-403895

Brand
OSG
Item
Screw Thread Insert STI Tap: Thread Forming, 1/4"-28 UNF, H4 / 2B-3B
Category
Thread-Forming STI Taps
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Worldwide DHL shipping from Singapore; 7–14 business days door-to-door for most destinations.
Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Technical Specifications

OSG
Manufacturer Part Number
1626002208
Type
H4 / 2B-3B, Modified Bottoming Chamfer
UNF
1/4"-28

Technical Documents

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

Product Description

The OSG Screw Thread Insert STI Tap: Thread Forming (MPN 1626002208) is a thread-forming tap for 1/4"-28 UNF applications, specified as H4 / 2B-3B with a Modified Bottoming Chamfer. This tool is designed for creating internal threads compatible with screw thread inserts.

Frequently Asked Questions

What is an OSG Screw Thread Insert STI Tap used for?

An OSG Screw Thread Insert STI Tap is used to form internal threads in a workpiece before installing a helical coil thread insert. It is ideal for aerospace, automotive, and general manufacturing applications requiring strong, wear-resistant threads in materials like aluminum and steel.

What are the specifications of the OSG 1626002208 STI Tap?

The OSG 1626002208 is a thread-forming STI tap with a 1/4"-28 UNF thread size, H4 / 2B-3B tolerance, and a modified bottoming chamfer. It is designed for creating threads that accept screw thread inserts, ensuring precise fit and high thread strength.

Where to buy OSG STI taps in worldwide?

3G Electric supplies OSG STI taps like the 1626002208 to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility. Contact us for a quote and lead time on this thread-forming tap for your industrial application.

How to select the correct OSG STI tap for a thread insert?

To select the correct OSG STI tap, match the tap's thread size (e.g., 1/4"-28 UNF) and tolerance (H4 / 2B-3B) to the insert's specifications. Use a modified bottoming chamfer for blind holes. Always verify material compatibility and consult OSG's technical data for optimal thread forming.

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

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