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Screw Hole Related Tools(Thread Size (Nominal):No8UN)

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)

    Hand Taps - Through Hole/Blind Hole Use, HT

      Forming Taps - TiN Coated, Grooveless, TIN-NRT

        Round Threading Dies - Alloy High Speed Steel, General Thread, RD-S

          Spiral Flute Taps - Blind Hole Machining, High Speed Steel, EX-SUS-SFT

            Hand Taps - High Speed Steel, Straight Fluted, HL-HT

              Spiral Point Taps - High Speed Steel, Through Hole Use, EX-POT

              Brand

              OSG

              OSG

              OSG

              OSG

              OSG

              OSG

              Product Series

              Hand Taps - Through Hole/Blind Hole Use, HT

              Forming Taps - TiN Coated, Grooveless, TIN-NRT

              Round Threading Dies - Alloy High Speed Steel, General Thread, RD-S

              Spiral Flute Taps - Blind Hole Machining, High Speed Steel, EX-SUS-SFT

              Hand Taps - High Speed Steel, Straight Fluted, HL-HT

              Spiral Point Taps - High Speed Steel, Through Hole Use, EX-POT

              Days to Ship 8 Days or more

              Show Stock Products

              8 Days or more 8 Days or more 8 Days or more 8 Days or more 8 Days or more
              Thread TypesUnifiedUnifiedUnifiedUnifiedUnifiedUnified
              Thread Size (Nominal)No8UNNo8UNNo8UNNo8UNNo8UNNo8UN
              Pitch (P), Thread Count(mm)3232 ~ 3632 ~ 36363232
              Number of Chamfered Threads (Lcf)5P2P ~ 4P-2.5P5P5P
              Tool Material TypeHigh-Speed SteelVanadium High-Speed SteelAlloy High-Speed SteelVanadium High-Speed SteelHigh-Speed SteelVanadium High-Speed Steel
              Work MaterialMedium-Carbon Steel (C Content 0.25 - 0.45%)[○] / Ductile Cast Iron (FCD)[○] / 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)[◎] / Cast Steel (SC)[○] / Copper (Cu)[○] / Brass (Bs)[○] / Brass Cast Iron (BsC)[○] / Rolled Aluminum Material (AL)[○] / Cast Aluminum Alloy (AC, ADC)[○] / Zinc Alloy Castings (ZDC)[○]-Stainless Steel (SUS)[◎] / Copper (Cu)[◎] / Thermoplastic (PVC, Nylon etc.)[◎]Rolled Aluminum Material (AL)[○] / Cast Aluminum Alloy (AC, ADC)[○] / Zinc Alloy Castings (ZDC)[◎]Medium-Carbon Steel (C Content 0.25 - 0.45%)[○] / High-Carbon Steel (C Content Exceeding 0.45%)[○] / Alloy Steel (SCM)[○] / Cast Iron (FC)[○] / 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)[○] / Thermoplastic (PVC, Nylon etc.)[○]
              Tap ModelHand TapRolled TapDieSpiral TapHand TapPoint Tap
              Bore ModelFor Through Holes / For Blind HolesFor Blind Holes-For Blind HolesFor Through Holes / For Blind HolesFor Through Holes
              Coating PresenceNoneIncludedNoneNoneNoneNone
              Coating TypeNon-CoatedTiNNon-CoatedNon-CoatedNon-CoatedNon-Coated
              Overall Length (L)(mm)5252-526052

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