Shafts -Tapped Pilot-

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・Materials

Type				[ M ]Material	[ H ]Hardness	[ S ]Surface Treatment
One End Tapped	One End Stepped Tapped	One End Threaded	One End Threaded Thread O.D. = Shaft O.D.	[ M ]Material	[ H ]Hardness	[ S ]Surface Treatment
SFIT	SFIG	SFIN	SFIQ	52100 Bearing Steel	Induction Hardening Effective Hardened Depth>>P.104 52100 Bearing Steel 58HRC~ 440C Stainless Steel equivalent 56HRC~	-
SSFIT	SSFIG	SSFIN	SSFIQ	Equivalent of 440C Stainless Steel		-
PSFIT	PSFIG	PSFIN	PSFIQ	52100 Bearing Steel		Hard Chrome Plating Plating Hardness: HV750 ~ Plating Thickness 5µ or more
PSSFIT	PSSFIG	PSSFIN	PSSFIQ	Equivalent of 440C Stainless Steel

[ ! ]Shaft End Machined Area (Effective Thread Length + approx. 10mm)
Annealing could reduce hardness.
[ ! ]Changes in Circularity, Straightness, Perpendicularity, concentricity and Hardness.
>>P.103

Specification List

D Tolerance
D	g6
12	-0.006 -0.017
13
15
16
18
20	-0.007 -0.020
25
30

■One End Tapped and One End Stepped and Tapped

Part Number		1mm Increments			M Coarse (Tapped)									M Coarse (Stepped)									Pilot Dimensions								(Y) Max.	R	C
Type	D	L	F	P	M Coarse (Tapped)									M Coarse (Stepped)									N						V Hole Diameter	ℓ Hole Depth	(Y) Max.	R	C
Tapped Type SFIT SSFIT PSFIT PSSFIT Stepped and Tapped SFIG SSFIG PSFIG PSSFIG	12	25~1000	2≤F≤Px4	6~10	4	5	6	8						4	5	6							4						8	9	1000	0.3 Less than	0.5 Less than
	13	25~1000		6~11	4	5	6	8						4	5	6	8						4	5					10	11	1000
	15	25~1000		6~13	4	5	6	8	10					4	5	6	8	10					4	5					10	11	1000
	16	30~1200		6~14	4	5	6	8	10					4	5	6	8	10					4	5	6				12	13	1200
	18	30~1200		8~16	4	5	6	8	10	12				4	5	6	8	10	12				4	5	6				12	13	1200		1.0 Less than
	20	30~1200		8~17	4	5	6	8	10	12				4	5	6	8	10	12					5	6	8	10		16	17	1200
	25	35~1200		8~22	4	5	6	8	10	12	16			4	5	6	8	10	12	16					6	8	10	12	20	21	1200
	30	35~1500		9~27			6	8	10	12	16	20	24			6	8	10	12	16	20	24			6	8	10	12	20	21	1500

[ ! ]L (Y)>MX2.5+4+ℓ+NX1.5+4 is required to have effective thread length.-One End Stepped and Tapped[ ! ]M + 3 ≤ P is required for P Dimension.

Coarse Thread Dimensions
M	Pitch
4	0.7
5	0.8
6	1.0
8	1.25
10	1.5
12	1.75
16	2.0
20	2.5
24	3.0
30	3.5

■One End Threaded / Thread O.D. = Shaft O.D.

Part Number		1mm Increments				P									Pilot Dimensions								(Y) Max.	R	C
Type	D	L	F	B (Threaded).	B (Threaded - Thread O.D. = Shaft O.D.)	P									N						V Hole Diameter	ℓ Hole Depth	(Y) Max.	R	C
Threaded Type. SFIN SSFIN PSFIN PSSFIN Threaded - Thread O.D. = Shaft O.D. SFIQ SSFIQ PSFIQ PSSFIQ [ ! ]*sizes are only available for Thread O.D. = Shaft O.D.	*12	25~998	2≤F≤Px5	(When P≤6) B≤F-2 (When P=8 / 10) B≤F-3 (When P≤12) B≤F-5 [ ! ]B≥Pitchx3	2≤B≤Px5 [ ! ]*sizes are only available for Thread O.D. = Shaft O.D. L dimensions have priority, thus the effective thread length will be B-(Pitchx2).	5	6	8	10	12					4						8	9	1000	0.3 Less than	0.5 Less than
	13	25~998				5	6	8	10	12					4	5					10	11	1000
	15	25~998				5	6	8	10	12					4	5					10	11	1000
	*16	25~1198				5	6	8	10	12	16				4	5	6				12	13	1200
	18	25~1198				5	6	8	10	12	16				4	5	6				12	13	1200
	*20	25~1198					6	8	10	12	16	20				5	6	8	10		16	17	1200		1.0 Less than
	25	25~1198						8	10	12	16	20	24				6	8	10	12	20	21	1200
	*30	25~1498						8	10	12	16	20	24	30			6	8	10	12	20	21	1500