PO OX STI GH3 1/4-28UNF | YAMAWA MFG. Co., Ltd.

【英】タップ詳細

ANSISpiral Pointed Taps for Helical Coil Wire Screw Thread Inserts, Oxided

Design for Taps

Product code：PUU04K3NEX

Manufacturer's Suggested Retail Price (MSRP*)：JPY-

PDF Catalog	PDF
2D CAD	2Ｄ：DXF｜2Ｄ：PDF
3D CAD	3D：STEP｜3D：PDF

※MSRP is for reference purposes only. Please consult your local distributor for pricing.
Pricing outside Japan may vary due to each country's tax schedule,
tariffs, import/shipping charges, and duties imposed by customs.

Spec

Overall length(L)	3.543 inch
Thread length(ℓ)	0.748 inch
Thread+Neck length(ℓn)	1.378 inch
Shank length(ℓs)	1.831 inch
Shank dia.(Ds)	0.318 inch
Length of square(ℓk)	0.375 inch
Size of square(K)	0.238 inch

Surface Treatment	OX
Flute type	PO(Spiral Pointed Taps for through hole)
Materials	HSS
Chamfer length	5P
Number of flutes	2
Gross Weight	31 g
Bored hole size	0.2629 inch
Engagement ratio	72 %
(D1)Max.	0.2646 inch
(D1)Min.	0.2577 inch

Table of tapping speed recommended for each work material

Low carbon steels	5～10 m/min
Medium carbon steels	5～10 m/min
High carbon steels
Alloy steels
Heat treated steel (25〜35HRC)
Heat treated steel (35〜45HRC)
Heat treated steel (45〜55HRC)
Heat treated steel (55〜63HRC)
Stainless steels (SUS)
Tool steels
Cast steels
Cast irons
Ductile cast irons

Copper
Brass
Brass castings
Bronze
Wrought aluminum
Aluminum alloy castings
Magnesium alloy die castings
Zinc alloy die castings
Titanium alloys
Nickel base alloys
Thermosetting plastic
Thermoplastic resin