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

OSG Straight Flute Tap: 7/16"-20 UNF, 2B, 5 Flute, Modified Bottoming Chamfer - Straight-Flute Machine Taps for Hardened Steel
OSGStraight-Flute Machine Taps for Hardened Steel

OSG Straight Flute Tap: 7/16"-20 UNF, 2B, 5 Flute, Modified Bottoming Chamfer

The OSG Straight Flute Tap (7/16"-20 UNF) is a carbide machine tap for hardened steel, featuring a 2B thread class, modified bottoming chamfer, V coating, and 5 flutes (MPN 3111308). 3G Electric interprets this…

SKU 3G-OTH-216434

Brand
OSG
Item
Straight Flute Tap: 7/16"-20 UNF, 2B, 5 Flute, Modified Bottoming Chamfer
Category
Straight-Flute Machine Taps for Hardened 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
3111308
Type
2B, Modified Bottoming Chamfer, V Coated Carbide
Flute
5

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 Straight Flute Tap (7/16"-20 UNF) is a carbide machine tap for hardened steel, featuring a 2B thread class, modified bottoming chamfer, V coating, and 5 flutes (MPN 3111308). 3G Electric interprets this demand and sources the genuine OSG product, backed by specialist expertise across 14 industrial departments—including cutting tools—to ensure you get the right solution.

Frequently Asked Questions

What is OSG straight flute tap 3111308 used for?

This OSG straight flute tap is designed for threading hardened steel. Its V coated carbide construction and modified bottoming chamfer allow it to cut threads in tough materials where standard taps fail, making it essential for die and mold work.

What are the specifications of OSG tap 3111308?

The OSG tap 3111308 is a 7/16"-20 UNF, 2B class fit, with 5 flutes, a modified bottoming chamfer, and V coated carbide. It is a straight flute machine tap engineered for threading hardened steel up to 45 HRC.

Where to buy OSG tap 3111308 worldwide?

3G Electric supplies the OSG 3111308 straight flute tap to customers worldwide. We handle full logistics, customs clearance, and delivery to your facility, ensuring you get the correct threading tool for hardened steel applications.

How to select the right tap for hardened steel?

For hardened steel, choose a tap with carbide construction and a modified bottoming chamfer like the OSG 3111308. Ensure the thread size (7/16"-20 UNF) and class (2B) match your application. Use proper cutting fluid and rigid tapping techniques to extend 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 straight-flute machine taps for hardened 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
Straight-flute machine tap designed for threading hardened steel. Features a 2B thread class, modified bottoming chamfer for blind hole tapping, and V coated carbide construction. With 5 flutes, it is suitable for automotive, aerospace, and general machining applications
OSG
Straight-flute machine tap designed for threading hardened steel. Features a 2B thread class, modified bottoming chamfer for blind hole tapping, and V coated carbide construction. With 5 flutes, it is suitable for automotive, aerospace, and general machining applications
This straight-flute machine tap is designed for threading hardened steel. It features a V coated carbide construction, 2B thread class, 5 flutes, and a modified bottoming chamfer. Suitable for producing internal threads in tough materials in general machining applications
OSG
This straight-flute machine tap is designed for threading hardened steel. It features a V coated carbide construction, 2B thread class, 5 flutes, and a modified bottoming chamfer. Suitable for producing internal threads in tough materials in general machining applications
OSG Straight Flute Tap: 3/8"-24 UNF, 2B, 5 Flute, Modified Bottoming Chamfer, V Coated Carbide (MPN 3111108)
OSG
OSG Straight Flute Tap: 3/8"-24 UNF, 2B, 5 Flute, Modified Bottoming Chamfer, V Coated Carbide (MPN 3111108)
OSG Straight Flute Tap: 7/16"-14 UNC, 2B, 5 Flute, Modified Bottoming Chamfer, V Coated Carbide (MPN 3111208)
OSG
OSG Straight Flute Tap: 7/16"-14 UNC, 2B, 5 Flute, Modified Bottoming Chamfer, V Coated Carbide (MPN 3111208)
OSG Straight Flute Tap: 1/4"-28 UNF, 2B, 5 Flute, Modified Bottoming Chamfer, V Coated Carbide (MPN 3110708)
OSG
OSG Straight Flute Tap: 1/4"-28 UNF, 2B, 5 Flute, Modified Bottoming Chamfer, V Coated Carbide (MPN 3110708)
Straight-flute machine tap for threading hardened steel. Thread size 1/2"-20 UNF with H5 tolerance for class 2B/3B fit. Features 5 flutes and a modified bottoming chamfer for through-hole and blind-hole applications
OSG
Straight-flute machine tap for threading hardened steel. Thread size 1/2"-20 UNF with H5 tolerance for class 2B/3B fit. Features 5 flutes and a modified bottoming chamfer for through-hole and blind-hole applications

More from OSG

View all OSG parts
Straight-flute machine tap for threading hardened steel. Features a #10-24 UNC thread size, 2B class of fit, 4 flutes, modified bottoming chamfer, and V coated carbide construction. Suitable for tool and die work, mold making, and high-strength alloy applications
OSG
Straight-flute machine tap for threading hardened steel. Features a #10-24 UNC thread size, 2B class of fit, 4 flutes, modified bottoming chamfer, and V coated carbide construction. Suitable for tool and die work, mold making, and high-strength alloy applications
Straight-flute machine tap for threading hardened steel. Features M10x1.5 metric thread, D6 / 4H-6H tolerance class, 5 flutes, and a modified bottoming chamfer. Suitable for producing internal threads in tough materials
OSG
Straight-flute machine tap for threading hardened steel. Features M10x1.5 metric thread, D6 / 4H-6H tolerance class, 5 flutes, and a modified bottoming chamfer. Suitable for producing internal threads in tough materials
Straight-flute machine tap designed for threading hardened steel. Features M4x0.7 metric thread, D4 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer for cutting threads close to the bottom of blind holes. Suitable for precision machining applications requiring accurate internal threads
OSG
Straight-flute machine tap designed for threading hardened steel. Features M4x0.7 metric thread, D4 / 4H-6H tolerance class, 4 flutes, and a modified bottoming chamfer for cutting threads close to the bottom of blind holes. Suitable for precision machining applications requiring accurate internal threads
Straight-flute machine tap for threading hardened steel. Features V coated carbide construction, modified bottoming chamfer, and 5 flutes. Thread size 1/2"-13 UNC, class of fit 2B. Suitable for die and mold making, automotive components, and general machining of hardened workpieces
OSG
Straight-flute machine tap for threading hardened steel. Features V coated carbide construction, modified bottoming chamfer, and 5 flutes. Thread size 1/2"-13 UNC, class of fit 2B. Suitable for die and mold making, automotive components, and general machining of hardened workpieces
Straight-flute machine tap for threading hardened steel. Features V coated carbide construction, 4 flutes, and modified bottoming chamfer. Thread size #8-32 UNC, class 2B fit. Suitable for through or blind holes in tool and die work, mold making, and high-strength alloy applications
OSG
Straight-flute machine tap for threading hardened steel. Features V coated carbide construction, 4 flutes, and modified bottoming chamfer. Thread size #8-32 UNC, class 2B fit. Suitable for through or blind holes in tool and die work, mold making, and high-strength alloy applications
Straight-flute machine tap for threading hardened steel. Features a V coated carbide construction with a modified bottoming chamfer and 5 flutes. Thread size is 5/16"-18 UNC with a 2B class of fit. Used in die and mold applications, automotive, and general manufacturing for precision UNC threads
OSG
Straight-flute machine tap for threading hardened steel. Features a V coated carbide construction with a modified bottoming chamfer and 5 flutes. Thread size is 5/16"-18 UNC with a 2B class of fit. Used in die and mold applications, automotive, and general manufacturing for precision UNC threads
Straight-flute machine tap for threading hardened steel. Features V coated carbide construction, 2B class of fit, modified bottoming chamfer, and 5 flutes. Produces UNC threads in tough materials for general machining applications
OSG
Straight-flute machine tap for threading hardened steel. Features V coated carbide construction, 2B class of fit, modified bottoming chamfer, and 5 flutes. Produces UNC threads in tough materials for general machining applications
Straight-flute machine tap for threading hardened steel. Features a V coated carbide substrate for wear resistance, 4 flutes, and a modified bottoming chamfer. #6-32 UNC thread size, 2B class of fit. Suitable for creating internal threads in tool and die, automotive, and aerospace manufacturing applications
OSG
Straight-flute machine tap for threading hardened steel. Features a V coated carbide substrate for wear resistance, 4 flutes, and a modified bottoming chamfer. #6-32 UNC thread size, 2B class of fit. Suitable for creating internal threads in tool and die, automotive, and aerospace manufacturing applications