EXW Singapore — collect or forward from our Singapore office.

3G Electric
OSG spiral flute sti tap h flute - Spiral-Flute STI Taps for Multiple Materials
OSGSpiral-Flute STI Taps for Multiple Materials

Osg Spiral Flute Sti Tap H Flute

98 sizes & variants — select below · Model: 81 options

This product family comprises OSG spiral-flute STI taps designed for threading multiple materials, offering a comprehensive range of 98 size and specification variants. The selection table on this page provides…

WhatsApp an engineerMessage via Telegram
EXW Singapore
Collect or forward from our office
Datasheet on Request
Technical specs
1-Day Quote
Replies within 24h

Local availability & support

Payment
Invoicing in USD. Bank transfer (SWIFT) and corporate PO accepted.

Common specifications

OSG
Shared across the range — Model vary by variant (see table below).
Manufacturer Part Number
31504308

Technical Documents

No technical documents available for this product.
Request documentation →
Select a size

Showing 98 / 98 variants — scroll the table for more

Part No (MPN)315005013G SKU3G-OTH-281062Model#10-24 UNC, H2 / , 3
Part No (MPN)315031083G SKU3G-OTH-281064Model5/8"-18 UNF, H4 / , 4
Part No (MPN)315015013G SKU3G-OTH-281065Model3/8"-24 UNF, H3 / , 3
Part No (MPN)315010013G SKU3G-OTH-281067Model5/16"-18 UNC, H4 / , 3
Part No (MPN)315039083G SKU3G-OTH-281068Model7/8"-14 UNF, H4 / , 4
Part No (MPN)315021083G SKU3G-OTH-281070Model1/2"-13 UNC, H4 / , 3
Part No (MPN)315001083G SKU3G-OTH-281071Model#3-48 UNC, H2 / , 2
Part No (MPN)315024013G SKU3G-OTH-281072Model31502401 , 9/16"-12 UNC, H3 / , 4
Part No (MPN)315032083G SKU3G-OTH-281073Model3/4"-10 UNC, H3 / , 4
Part No (MPN)17166013G SKU3G-OTH-281074Model1/4"-28 UNF , H3 / , 3
Part No (MPN)315031013G SKU3G-OTH-281075Model5/8"-18 UNF, H4 / , 4 , 31503101
Part No (MPN)315006013G SKU3G-OTH-281076Model#10-24 UNC, H3 / , 3 , 31500601
Part No (MPN)315020013G SKU3G-OTH-281077Model1/2"-13 UNC, H3 / , 3
Part No (MPN)315043083G SKU3G-OTH-281079Model1"-12 UNF, H6 / , 4 , 31504308
Part No (MPN)315042013G SKU3G-OTH-281081Model1"-12 UNF, H4 / , 4 , 31504201
Part No (MPN)315028083G SKU3G-OTH-281083Model5/8"-11 UNC, H3 / , 4
Part No (MPN)315026083G SKU3G-OTH-281086Model31502608 , 9/16"-18 UNF, H3 / , 4
Part No (MPN)315036013G SKU3G-OTH-281087Model31503601 , 7/8"-9 UNC, H3 / , 4
Part No (MPN)315007083G SKU3G-OTH-281089Model1/4"-20 UNC, H2 / , 3
Part No (MPN)315004083G SKU3G-OTH-281090Model#8-36 UNF, H2 / , 3
Part No (MPN)315003083G SKU3G-OTH-281092Model#6-40 UNF, H2 / , 3
Part No (MPN)315041013G SKU3G-OTH-281094Model1"-8 UNC, H6 / , 4 , 31504101
Part No (MPN)315007013G SKU3G-OTH-281098Model1/4"-20 UNC, H2 / , 3
Part No (MPN)315003013G SKU3G-OTH-281099Model#6-40 UNF, H2 / , 3
Part No (MPN)17164013G SKU3G-OTH-281101Model#10-32 UNF, H3 / , 3
Part No (MPN)315037013G SKU3G-OTH-281102Model: 7/8"-9 UNC, H5 / , 4
Part No (MPN)315039013G SKU3G-OTH-281103Model7/8"-14 UNF, H4 / , 4
Part No (MPN)315034083G SKU3G-OTH-281104Model3/4"-16 UNF, H3 / , 4
Part No (MPN)17157083G SKU3G-OTH-281106Model#2-56 UNC, H2 / , 2 , 1715708
Part No (MPN)315005083G SKU3G-OTH-281107Model#10-24 UNC, H2 / , 3
Part No (MPN)315015083G SKU3G-OTH-281108Model3/8"-24 UNF, H3 / , 3 , 31501508
Part No (MPN)17164083G SKU3G-OTH-281109Model#10-32 UNF H3 3
Part No (MPN)17163083G SKU3G-OTH-281110Model#10-32 UNF, H2 / , 3
Part No (MPN)17165083G SKU3G-OTH-281111Model1/4"-28 UNF , H2 / , 3 , 1716508
Part No (MPN)315032013G SKU3G-OTH-281112Model31503201 , 3/4"-10 UNC, H3 / , 4
Part No (MPN)315029013G SKU3G-OTH-281113Model31502901 , 5/8"-11 UNC, H4 / , 4
Part No (MPN)315040013G SKU3G-OTH-281116Model1"-8 UNC, H4 / , 4
Part No (MPN)315013083G SKU3G-OTH-281119Model3/8"-16 UNC, H4 / , 3
Part No (MPN)17162083G SKU3G-OTH-281120Model#8-32 UNC, H3 / , 3
Part No (MPN)315019083G SKU3G-OTH-281121Model7/16"-20 UNF , H4 / , 3
Part No (MPN)17162013G SKU3G-OTH-281122Model#8-32 UNC H3 / 3 1716201
Part No (MPN)315043013G SKU3G-OTH-281123Model1"-12 UNF, H6 / , 4
Part No (MPN)315024083G SKU3G-OTH-281124Model31502408 , 9/16"-12 UNC, H3 / , 4
Part No (MPN)315017083G SKU3G-OTH-281125Model7/16"-14 UNC, H4 / , 3
Part No (MPN)315012083G SKU3G-OTH-281126Model31501208 , 3/8"-16 UNC, H3 / , 3
Part No (MPN)315014083G SKU3G-OTH-281128Model3/8"-24 UNF, H2 / , 3
Part No (MPN)17167083G SKU3G-OTH-281129Model5/16"-24 UNF, H3 / , 3
Part No (MPN)315011013G SKU3G-OTH-281130Model31501101 , 5/16"-24 UNF, H2 / , 3
Part No (MPN)17158083G SKU3G-OTH-281131Model#4-40 UNC, H2 / , 2
Part No (MPN)315019013G SKU3G-OTH-281132Model7/16"-20 UNF, H4 / , 3
Part No (MPN)17160013G SKU3G-OTH-281133Model#6-32 UNC, H3 / , 3
Part No (MPN)315009013G SKU3G-OTH-281134Model5/16"-18 UNC, H3 / , 3
Part No (MPN)315034013G SKU3G-OTH-281139Model3/4"-16 UNF, H3 / , 4
Part No (MPN)315035083G SKU3G-OTH-281140Model3/4"-16 UNF, H4 / , 4
Part No (MPN)315027083G SKU3G-OTH-281141Model9/16"-18 UNF, H4 / , 4 , 31502708
Part No (MPN)315038013G SKU3G-OTH-281142Model31503801 , 7/8"-14 UNF, H3 / , 4
Part No (MPN)315008013G SKU3G-OTH-281143Model1/4"-20 UNC, H3 / , 3
Part No (MPN)315010083G SKU3G-OTH-281144Model31501008 , 5/16"-18 UNC, H4 / , 3
Part No (MPN)315017013G SKU3G-OTH-281146Model31501701 , 7/16"-14 UNC, H4 / , 3
Part No (MPN)315025013G SKU3G-OTH-281147Model31502501 , 9/16"-12 UNC, H4 / , 4
Part No (MPN)315030083G SKU3G-OTH-281149Model31503008 , 5/8"-18 UNF, H3 / , 4
Part No (MPN)17159013G SKU3G-OTH-281150Model#6-32 UNC, H2 / , 3
Part No (MPN)315030013G SKU3G-OTH-281151Model5/8"-18 UNF, H3 / , 4
Part No (MPN)315006083G SKU3G-OTH-281153Model#10-24 UNC, H3 / , 3
Part No (MPN)315027013G SKU3G-OTH-281154Model31502701 , 9/16"-18 UNF, H4 / , 4
Part No (MPN)315004013G SKU3G-OTH-281156Model#8-36 UNF, H2 / , 3
Part No (MPN)315009083G SKU3G-OTH-281157Model5/16"-18 UNC, H3 / , 3
Part No (MPN)315014013G SKU3G-OTH-281158Model31501401 , 3/8"-24 UNF, H2 / , 3
Part No (MPN)17165013G SKU3G-OTH-281159Model1/4"-28 UNF, H2 / , 3 , 1716501
Part No (MPN)315037083G SKU3G-OTH-281160Model7/8"-9 UNC, H5 / , 4
Part No (MPN)315002083G SKU3G-OTH-281162Model#4-48 UNF, H2 / , 2
Part No (MPN)315008083G SKU3G-OTH-281165Model1/4"-20 UNC , H3 / , 3
Part No (MPN)315023013G SKU3G-OTH-281166Model1/2"-20 UNF, H4 / , 3
Part No (MPN)315022083G SKU3G-OTH-281167Model1/2"-20 UNF, H3 / , 3
Part No (MPN)315038083G SKU3G-OTH-281168Model7/8"-14 UNF, H3 / , 4
Part No (MPN)315020083G SKU3G-OTH-281170Model1/2"-13 UNC, H3 / , 3
Part No (MPN)315016083G SKU3G-OTH-281171Model7/16"-14 UNC, H3 / , 3 , 31501608
Part No (MPN)17158013G SKU3G-OTH-281172Model#4-40 UNC, H2 / , 2
Part No (MPN)315028013G SKU3G-OTH-281173Model31502801 , 5/8"-11 UNC, H3 / , 4
Part No (MPN)17159083G SKU3G-OTH-281174Model#6-32 UNC, H2 / , 3 , 1715908
Part No (MPN)17157013G SKU3G-OTH-281175Model#2-56 UNC, H2 / , 2
Part No (MPN)17161013G SKU3G-OTH-281176Model#8-32 UNC, H2 / , 3
Part No (MPN)315021013G SKU3G-OTH-281177Model1/2"-13 UNC, H4 / , 3
Part No (MPN)315002013G SKU3G-OTH-281178Model#4-48 UNF, H2 / , 2 , 31500201
Part No (MPN)315012013G SKU3G-OTH-281180Model3/8"-16 UNC, H3 / , 3
Part No (MPN)315018083G SKU3G-OTH-281181Model7/16"-20 UNF, H3 / , 3
Part No (MPN)315025083G SKU3G-OTH-281182Model9/16"-12 UNC, H4 / , 4
Part No (MPN)17167013G SKU3G-OTH-281184Model5/16"-24 UNF, H3 / , 3
Part No (MPN)315001013G SKU3G-OTH-281185Model#3-48 UNC , H2 / , 2
Part No (MPN)17160083G SKU3G-OTH-281186Model#6-32 UNC, H3 / , 3
Part No (MPN)315035013G SKU3G-OTH-281188Model3/4"-16 UNF, H4 / , 4
Part No (MPN)315042083G SKU3G-OTH-281190Model1"-12 UNF, H4 / , 4
Part No (MPN)315026013G SKU3G-OTH-281191Model9/16"-18 UNF, H3 / , 4
Part No (MPN)315023083G SKU3G-OTH-281194Model1/2"-20 UNF, H4 / , 3
Part No (MPN)17161083G SKU3G-OTH-281195Model#8-32 UNC, H2 / , 3
Part No (MPN)315013013G SKU3G-OTH-281196Model3/8"-16 UNC, H4 / , 3
Part No (MPN)17163013G SKU3G-OTH-281197Model#10-32 UNF, H2 / , 3
Part No (MPN)315029083G SKU3G-OTH-281199Model5/8"-11 UNC, H4 / , 4
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

Frequently Asked Questions

How do I select the correct tap size from the 98 variants?

Begin by identifying the required thread size (e.g., M6, M8) and pitch from your application's specifications. Then, use the selection table to filter variants by these attributes. Ensure the tap's overall length and thread length are suitable for your workpiece's depth and accessibility.

What materials are these spiral-flute STI taps suitable for?

These taps are designed for threading multiple materials, including steel, stainless steel, aluminum, and other common industrial materials. The spiral-flute design aids in chip evacuation, making them effective for both through-hole and blind-hole threading in these materials.

Customer reviews

No reviews yet — be the first

Questions & answers

No questions yet — ask us the first

OSG Products

3G Electric supplies OSG spiral-flute sti taps for multiple materials. 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 →

More from OSG

View all OSG parts →
This OSG pencil-neck carbide ball end mill features a Durorey coating and 2 flutes, with a 1.5 mm mill diameter, 1.2 mm length of cut, and 45 mm overall length. Designed for hardened materials, it is suited for precision contouring and finishing operations in mold and die work and other high-hardness machining applications
OSG
This OSG pencil-neck carbide ball end mill features a Durorey coating and 2 flutes, with a 1.5 mm mill diameter, 1.2 mm length of cut, and 45 mm overall length. Designed for hardened materials, it is suited for precision contouring and finishing operations in mold and die work and other high-hardness machining applications
This oversized thread-forming tap from OSG is designed for creating internal threads by material displacement in ductile materials such as aluminum, brass, and steel. It features a 1/4"-20 UNC thread size, H12 tolerance, modified bottoming chamfer for through or blind holes, and TiCN-coated cobalt construction to reduce friction and extend tool life. Suitable for high-speed production environments where chip evacuation is problematic
OSG
This oversized thread-forming tap from OSG is designed for creating internal threads by material displacement in ductile materials such as aluminum, brass, and steel. It features a 1/4"-20 UNC thread size, H12 tolerance, modified bottoming chamfer for through or blind holes, and TiCN-coated cobalt construction to reduce friction and extend tool life. Suitable for high-speed production environments where chip evacuation is problematic
This spiral-point STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a 7/16"-14 UNC thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. Designed for through-hole tapping in materials such as aluminum, steel, and cast iron
OSG
This spiral-point STI tap cuts internal threads in multiple materials to accept helical wire thread inserts. It features a 7/16"-14 UNC thread size, H4 / 2B-3B tolerance, 3 flutes, and a plug chamfer. Designed for through-hole tapping in materials such as aluminum, steel, and cast iron
This OSG carbide corner-radius end mill is designed for high-feed machining of hardened materials. It features a WXS coating, 5 flutes, a 1/2" mill diameter, 0.2" length of cut, 1/8" corner radius, and 5" overall length. The corner radius strengthens the cutting edge to reduce chipping, making it suitable for roughing and finishing operations in tool and die, mold, and aerospace applications
OSG
This OSG carbide corner-radius end mill is designed for high-feed machining of hardened materials. It features a WXS coating, 5 flutes, a 1/2" mill diameter, 0.2" length of cut, 1/8" corner radius, and 5" overall length. The corner radius strengthens the cutting edge to reduce chipping, making it suitable for roughing and finishing operations in tool and die, mold, and aerospace applications
Carbide corner-radius end mill with WXS coating for high-feed machining of hardened materials. Features 5 flutes, 10 mm mill diameter, 4 mm length of cut, and 2 mm corner radius. Suitable for finishing and semi-finishing operations in tool and die, mold, and general machining applications
OSG
Carbide corner-radius end mill with WXS coating for high-feed machining of hardened materials. Features 5 flutes, 10 mm mill diameter, 4 mm length of cut, and 2 mm corner radius. Suitable for finishing and semi-finishing operations in tool and die, mold, and general machining applications
OSG
OSG
Coolant-through helical-flute thread mill for cutting internal threads in aluminum and non-ferrous materials. M12x1.75 metric, 2-flute, DLC-IGUSS coated carbide. Combines thread milling and chamfering in one operation for CNC machining applications
Cobalt square end mill with TiCN coating and 4 flutes. Mill diameter 3/4", length of cut 2-1/4", overall length 4-1/2". Used for milling slots, profiles, and contours in ferrous and non-ferrous materials
OSG
Cobalt square end mill with TiCN coating and 4 flutes. Mill diameter 3/4", length of cut 2-1/4", overall length 4-1/2". Used for milling slots, profiles, and contours in ferrous and non-ferrous materials
OSG
OSG
This coolant-through helical-flute thread mill is designed for cutting internal threads in aluminum and non-ferrous materials. It features a DLC-IGUSS coated carbide construction with 2 flutes and an M8x1.25 metric thread size. The helical flute design and coolant-through capability facilitate chip evacuation and reduce cycle time in CNC machining centers