STI Tap - Threading HSS

Name: STI Tap - Threading HSS
Brand: QUMOS ENTERPRISES
Price: 353 INR
Availability: InStock

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MOQ : 1 Set

STI Tap - Threading HSS Specification

Cutter Type
Thread Tap Cutter

Operation Type
Tapping

Material
High Speed Steel (HSS)

Coating
Uncoated

Shape
Straight Flute

Cutting Accuracy
High Precision Threading

Operate Method
Hand or Machine Operated

Length
Standard Length (Varies with diameter)

Machine Type
Suitable for drilling machines and hand tools

Features
High durability, rust-resistant, precise threading, suitable for professional use

Cutting Capacity
Suitable for Aluminum, Steel, and Cast Iron

Hardness
HRC 60-65

Cutting Speed
25-35 m/min

Cutting Force
Low to Medium

Tool Type
STI (Screw Thread Insert) Tap

Coating Type
No special coating

Drill Bits Types
Not Applicable for STI Tap

Diameter
M2 M18 (other sizes on request)

Maximum Torque
Varies as per thread size

Processing Type
Internal Threading (Screw Thread Insert)

Usage
Used for creating tapped holes for thread inserts

Packaging Type
Plastic Box or as required

Surface Finish
Ground, Polished

Thread Direction
Right Hand

Blade Size
Standard (as per size selection)

Tolerance
Standard Tap Tolerance

Minimum Order Quantity
As per manufacturer policy

Thread Type
Metric Thread

About STI Tap - Threading HSS

S.T.I. (Screw Thread Insert) Taps are special taps for helical coil wire screw thread inserts, which provide positive means for protecting and strengthening tapped threads in any material.

These STI taps are correctly sized to produce an internal thread that accommodates a helical coil wire screw thread insert. The insert, in turn, will accept a screw thread of the nominal size and pitch at final assembly. Screw thread inserts provide stronger tapped threads (stronger assemblies) due to a more balanced distribution of loads throughout the length of thread engagement.

Taps are available in a wide range of sizes with us (inch and metric) in both straight and taper pipe threads.


BA	British Association Standard Thread
BSF	British Standard Fine Thread Series
BSPP	British Standard Pipe (Parallel) Thread
BSPT	British Standard Taper Pipe Thread
BSW	British Standard Whitworth Coarse Thread Series
M	Metric ScrewThread Series
N	American National 8, 12 and 16 Thread Series (8N, 12N, 16N)
N BUTT	American Buttress Screw Thread
NC	American National Coarse Thread Series
NEF	American National Extra Fine Thread Series
NF	American National Fine Thread Series
NGO	National Gas Outlet Thread
NGT	National Gas Taper Thread (see "SGT")
NH	American National Hose Coupling and Fire Hose Coupling Threads
NPS	For tap marking only (See NPSC, NPSM)
NPSC	American National Standard Straight Pipe Thread in Pipe Couplings (Tap marked NPS)
NPSF	Dryseal American National Standard Fuel Internal Straight Pipe Thread
NPSH	American National Standard Straight Pipe Thread for Hose Couplings
NPSI	Dryseal American National Standard Intermediate Internal Straight Pipe Thread
NPSL	American National Standard Straight Pipe Thread for Loose Fitting Mechanical Joints with Locknuts
NPSM	American National Standard Straight Pipe Threads for Free-Fitting Mechanical Joints for Fixtures (Tap marked NPS)
NPT	American National Standard Taper Pipe Thread (See ANPT, NPTR)
NPTF	Dryseal American National Standard Taper Pipe Thread
NPTR	American National Standard Taper Pipe Thread for Railing Joints (Tap marked NPT)
NS	American National Thread-Special
PTF	Dryseal SAE Short Taper Pipe Thread
SGT	Special Gas Taper Thread
SPL-PTF	Dryseal Special Taper Pipe Thread
STI	Special Thread for Helical Coil Wire Screw Thread Inserts
Stub Acme	Stub Acme Thread
*UN	Unified Constant Pitch Thread Series
*UNC	Unified Coarse Thread Series
*UNEF	Unified Extra Fine Thread Series
*UNF	Unified Fine Thread Series
UNJ	Unified Thread Series with a 0.15011P to 0.18042P Controlled Root Radius on External Thread only.
UNJC	Unified Coarse Thread Series with a 0.15011P to 0.18042P Controlled Root Radius on External Thread only.
UNJF	Unified Fine Thread Series with a 0.15011P to 0.18042P Controlled Root Radius on External Thread only.
UNM	Unified Miniature Thread Series
UNR	Unified Constant Pitch Thread Series with a 0.108P to 0.144P Controlled Root Radius; Ext. thread only.
UNRC	Unified Coarse Thread Series with a 0.108P to 0.144P Controlled Root Radius; Ext. thread only.
UNRF	Unified Fine Thread Series with a 0.108P to 0.144P Controlled Root Radius; External thread only.
*UNS	Unified Thread-Special
V	A 60 "V" thread with Truncated Crest and Root. The theoretical "V" Form is usually flatted to the users specifications.
WHIT	British Standard Whitworth Special Thread

Precise Threading for Professional Applications

The STI Tap is engineered for exceptional accuracy when preparing tapped holes for thread inserts. Its high precision threading minimizes the risk of thread misalignment, making it ideal for industries demanding strict tolerances and reliability. The ground and polished surface ensures smooth cutting and extended tool life.

Versatile and Durable Performance

Crafted from high-quality HSS, the STI Tap excels across a broad range of applications, including professional workshops, distributors, and industry suppliers. Its robust design accommodates hand or machine operations and effectively handles aluminum, steel, and cast iron, delivering consistent results with low to medium cutting force.

FAQs of STI Tap - Threading HSS:

Q: How do I use the STI Tap for threading holes for screw thread inserts?

A: To use the STI Tap, first create a properly sized drilled hole according to your insert requirements. Insert the tap into the hole and apply steady pressure, turning it by hand or with a tapping machine in the right-hand direction. This creates precise internal threads suitable for screw thread inserts.

Q: What materials can the STI Tap thread, and what is the recommended cutting speed?

A: This tap is suitable for threading aluminum, steel, and cast iron. For best performance and to maintain tool longevity, a cutting speed of 2535 m/min is recommended when operating the tap.

Q: When should I choose an STI Tap over a regular tap?

A: Use an STI Tap specifically when preparing holes for screw thread inserts. It is designed to create the slightly oversized, high-precision threads that ensure proper fit and performance of inserts, which a standard tap cannot achieve.

Q: Where is the STI Tap most commonly used?

A: The STI Tap is widely used in engineering workshops, manufacturing facilities, repair centers, and industries where thread repair or reinforcement using inserts is required. It is also favored by distributors, exporters, and wholesalers in professional applications.

Q: What is the process to select the correct STI Tap size?

A: Select the tap diameter (from M2 to M18, or custom sizes) based on your specific thread insert requirements. Match the thread pitch and tooling to the insert specification to ensure compatibility and optimum thread integrity.

Q: What are the main benefits of using this STI Tap?

A: Benefits include high durability due to HSS construction, reliable rust resistance, consistent thread precision, versatility across multiple materials, and usability with both hand tools and drilling machines. These features result in professional-quality thread preparation and long tool life.

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