LARGE DIAMETER STRAIGHT CORE PINS –SHAFT DIAMETER (D) SELECTION/SHAFT DIAMETER (P) DESIGNATION–
Part Number – L – P – C – T(TC) – (KC/WKC … etc.) GCMBN14 – 60.30 – P10.20 – C0.2 – TC5 – KC – MC5
Part Number
Alterations
D or P Finishing
M Material H Hardness
Shaft Diameter (D) selection type
Shaft Diameter (P) designation type
Alterations
Code
Spec.
L
A section details
GCMN
GCMBN
0.5
Single flat cutting Designate as KC when KC = (DorP)/2. X Dimension KC cannot be designated. Two flats cutting Designate as WKC when WKC = DorP. X Dimension WKC cannot be designated. Four flats cutting Designate as SKC when SKC = DorP. X Dimension SKC cannot be designated.
NAK80
37–43HRC
0.1
KC
GCMK GCMX
GCMBK GCMBX
R0.2 － 0.5
G
－ 0.01 0
（ DorP ） /2
KC
0.25
30–33HRC
C
C0.1
C0.1
WKC
2
0 － 0.02 WKC
A section
DorP
SKC
0 － 0.02 SKC
DorP
Head diameter change HC = 0.1mm increments E When cylindrical shape is specified and P = HC, HC = 0.01 mm increments designation is possible. E (DorP) ≦ HC < H
G
1.6
HC
0 －
0 －
T
D or P H
0.02
0.005
＋ 0.01 0
Head thickness change ( ＊ ) TC = 0.1mm increments, dimension L remains unchanged. E 2.0 ≦ TC ＜ 8 or TC ＝ 0 (Note 1) E T − TC ≦ Lmax.−L
0 －
L
0.2
TC
0
－ 0.02 TC
T
Head tapping
■ Shaft diameter (D) selection type H Part Number
E When L ≦ M × 4, the tapped hole may penetrate through. Please be careful.
D or P
Tap M selection
M × 2
L 0.01 mm increments
C 0.1 mm increments
8.00– 9.99 10.00–13.99 14.00–15.99 16.00–19.99 20.00–60.00
4 5
T
Type
D
MC
10 14 16 20 24 30 40 50 60
15 19 21 25 30 35 45 55 65
6/8
6/8/10
GCMN GCMK (NAK80)
8/10/12/16
4
＋ 0.1
0 d
Head dowel hole boring X Combination with any other alteration not available
T 4 6 8
d 2
ℓ 3
20.00–100.00
0–0.5
6
NC
3
5
T
8
GCMX
(
)
( ＊ ) Designating TC0/DorP = HC results in a cylinder. (Example) GCMN14–45–C0.1–TC0
E is a registered trademark of UDDEHOLM TOOL CO. ■ Shaft diameter (P) 0.01 mm designation type H Part Number
45
※ There is no relief under the head.
0.01 mm increments
C 0.1 mm increments
T
Type
No.
L
P
10 14 16 20 24 30 40 50 60
8.00– 9.99 10.00–13.99 14.00–15.99 16.00–19.99 20.00–23.99 24.00–29.99 30.00–39.99 40.00–49.99 50.00–59.99
15 19 21 25 30 35 45 55 65
GCMBN GCMBK (NAK80)
4
20.00–100.00
0–0.5
6
8
GCMBX
(
)
is a registered trademark of UDDEHOLM TOOL CO.
E
PartNumber – L – P – C – T GCMN 16 – 35.00 – C0.1 – T8 GCMBK20 – 50.02 – P17.01 – C0.3 – T4
Quotation
Order
Delivery
419
420
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