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Screw Hole Related Tools(Thread Size (Nominal):1/4-20UNC)

Threading tools have functions to cut threads in accordance with the required thread types and sizes, or to conduct plastic forming. Commonly-used tool type is formed tools called taps. They are used in many different ways; for example, handles are attached to them for manual machining, or for large-lot production, they are mounted to machine tools called tool holders or NC machine tool. High-speed steel is most commonly employed for these tools, and alloy carbide (coated alloy carbide is mainly applied) is also increasingly employed for its durability. When threading with taps, the thinner taps are, the more likely they break. As cutting chips solidify with heat, or the tap end makes contact with the bottom of pilot hole, there is more possibility the tap is damaged. Additionally, when using a coil insert, a dedicated tap needs to be used rather than a regular tap.

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Brand
Product Series
Days to Ship
Thread Types
Thread Size (Nominal)
Pitch (P), Thread Count(mm)
Number of Chamfered Threads (Lcf)
Tool Material Type
Work Material
Tap Model
Bore Model
Coating Presence
Coating Type
Overall Length (L)(mm)

    Spiral Flute Taps - Model A Series, V Coated, A-SFT

      Spiral Point Taps - High Speed Steel, V Coated, A-POT, Model A Series

        Spiral Flute Taps - High Speed Steel, SU+SP/SU-SP

          Hand Taps - Carbide, for Cast Iron, N-CT FC

            Spiral Point Taps - for Stainless Steels, Oxidized, SU+PO/SU-PO

              Forming Taps - High Speed Steel, TiCN Coated, OL+RZ/OL-RZ

                Forming Taps - High Performance, TiCN Coated, HP+ RZ/HP-RZ

                Brand

                OSG

                OSG

                YAMAWA

                YAMAWA

                YAMAWA

                YAMAWA

                YAMAWA

                Product Series

                Spiral Flute Taps - Model A Series, V Coated, A-SFT

                Spiral Point Taps - High Speed Steel, V Coated, A-POT, Model A Series

                Spiral Flute Taps - High Speed Steel, SU+SP/SU-SP

                Hand Taps - Carbide, for Cast Iron, N-CT FC

                Spiral Point Taps - for Stainless Steels, Oxidized, SU+PO/SU-PO

                Forming Taps - High Speed Steel, TiCN Coated, OL+RZ/OL-RZ

                Forming Taps - High Performance, TiCN Coated, HP+ RZ/HP-RZ

                Days to Ship 8 Days or more 8 Days or more 8 Days or more 8 Days or more 8 Days or more 8 Days or more 8 Days or more
                Thread TypesUnifiedUnifiedUnifiedUnifiedUnifiedUnifiedUnified
                Thread Size (Nominal)1/4-20UNC1/4-20UNC1/4-20UNC1/4-20UNC1/4-20UNC1/4-20UNC1/4-20UNC
                Pitch (P), Thread Count(mm)-------
                Number of Chamfered Threads (Lcf)2.5P5P2.5P1.5P ~ 3P5P4P2P ~ 4P
                Tool Material TypePowdered High-Speed SteelPowdered High-Speed SteelHigh-Speed SteelCarbide-Powdered High-Speed SteelPowdered High-Speed Steel
                Work MaterialLow-Carbon Steel (C Content of 0.25% or Less)[○] / Medium-Carbon Steel (C Content 0.25 - 0.45%)[◎] / High-Carbon Steel (C Content Exceeding 0.45%)[◎] / Alloy Steel (SCM)[○] / Stainless Steel (SUS)[○] / Tool Steel (Before SKD Quenching)[○] / Cast Steel (SC)[○] / Ductile Cast Iron (FCD)[○] / Copper (Cu)[○] / Brass (Bs)[○] / Brass Cast Iron (BsC)[○] / Bronze (PB)[○] / Rolled Aluminum Material (AL)[○] / Cast Aluminum Alloy (AC, ADC)[◎] / Cast Magnesium Alloy (MC)[○] / Zinc Alloy Castings (ZDC)[○]Low-Carbon Steel (C Content of 0.25% or Less)[◎] / Medium-Carbon Steel (C Content 0.25 - 0.45%)[◎] / High-Carbon Steel (C Content Exceeding 0.45%)[◎] / Alloy Steel (SCM)[◎] / Stainless Steel (SUS)[◎] / Tool Steel (Before SKD Quenching)[○] / Cast Steel (SC)[◎] / Ductile Cast Iron (FCD)[◎] / Copper (Cu)[○] / Brass (Bs)[○] / Brass Cast Iron (BsC)[○] / Bronze (PB)[○] / Rolled Aluminum Material (AL)[○] / Cast Aluminum Alloy (AC, ADC)[○] / Cast Magnesium Alloy (MC)[○] / Zinc Alloy Castings (ZDC)[○] / Titanium Alloy (Ti-6Al-4V Equivalent)[○]High-Carbon Steel (C Content Exceeding 0.45%)[○] / Alloy Steel (SCM)[○] / Stainless Steel (SUS)[○]Heat-Treated Steel (45 - 55 HRC)[○] / Cast Iron (FC)[○] / Ductile Cast Iron (FCD)[○] / Brass (Bs)[○] / Brass Cast Iron (BsC)[○] / Bronze (PB)[○]Low-Carbon Steel (C Content of 0.25% or Less)[○] / Medium-Carbon Steel (C Content 0.25 - 0.45%)[○] / High-Carbon Steel (C Content Exceeding 0.45%)[○] / Alloy Steel (SCM)[○] / Stainless Steel (SUS)[○] / Cast Steel (SC)[○]Low-Carbon Steel (C Content of 0.25% or Less)[○] / Medium-Carbon Steel (C Content 0.25 - 0.45%)[○] / High-Carbon Steel (C Content Exceeding 0.45%)[○] / Alloy Steel (SCM)[○] / Stainless Steel (SUS)[○] / Rolled Aluminum Material (AL)[○] / Cast Aluminum Alloy (AC, ADC)[○] / Zinc Alloy Castings (ZDC)[○]Low-Carbon Steel (C Content of 0.25% or Less)[○] / Medium-Carbon Steel (C Content 0.25 - 0.45%)[○] / High-Carbon Steel (C Content Exceeding 0.45%)[○] / Alloy Steel (SCM)[○] / Stainless Steel (SUS)[○] / Rolled Aluminum Material (AL)[○] / Cast Aluminum Alloy (AC, ADC)[○] / Zinc Alloy Castings (ZDC)[○]
                Tap ModelSpiral TapPoint TapSpiral TapHand TapPoint TapRolled TapRolled Tap
                Bore ModelFor Blind HolesFor Through HolesFor Blind HolesFor Through Holes / For Blind HolesFor Through HolesFor Through HolesFor Through Holes / For Blind Holes
                Coating PresenceIncludedIncludedNoneNoneNoneIncludedIncluded
                Coating TypeOthersOthers---TiCNTiCN
                Overall Length (L)(mm)62626262626262

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