Click Specification

(Non-preferred) dimensions in parentheses.

Spectacle Frames - Slotted Pan Head Screws

JIS B 1119 (1P) - 1986

Display drawing:

Screw Thread
d

M1
×1.5

M1
×1.8

M1.2
×1.8

M1.2
×2

M1.4
×1.8

M1.4
×2

M1.4
×2.5

M1.4
×2.8

M1.6
×2.5

M1.6
×2.8

(M1.7)
×2.5

(M1.7)
×2.8

M2
×3

P	Pitch
d_k	max
	min
k	max
	min
n	max
	min
t₁	Nominal Size
	max
	min
r	max
d₁
T₁

0.25	0.25	0.25	0.25	0.3	0.3	0.3	0.3	0.35	0.35	0.35	0.35	0.4
1.5	1.8	1.8	2	1.8	2	2.5	2.8	2.5	2.8	2.5	2.8	3
1.36	1.66	1.66	1.86	1.66	1.86	2.36	2.66	2.36	2.66	2.36	2.66	2.86
0.67	0.67	0.67	0.67	0.67	0.67	0.67	0.67	0.67	0.67	0.67	0.67	0.67
0.53	0.53	0.53	0.53	0.53	0.53	0.53	0.53	0.53	0.53	0.53	0.53	0.53
0.4	0.4	0.4	0.48	0.4	0.48	0.48	0.48	0.48	0.48	0.48	0.48	0.48
0.32	0.32	0.32	0.4	0.32	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35	0.35
0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4	0.4
0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3	0.3
0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05	0.05
/	/	/	/	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	/
/	/	/	/	0.6	0.6	0.6	0.6	0.6	0.6	0.6	0.6	/

①,The threaded length (b) shall be as agreed upon between the parties concerned on delivery. However, unless otherwise designated specially, it shall be thread-worked till underhead and the incomplete threaded length shall be not more than 1.5 ridges.

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Similar Standards

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23	[BS] BS 1981 - 1991	Slotted Pan Head Machine Screws
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27	[AS] AS /NZS 1427 - 1996	ISO Metric Slotted Pan Head Screws [Table 3]
28	[CNS] CNS 9669 - 1988	Slotted Oval Pan Head Machine Screws
29	[CNS] CNS 9681 - 1988	Slotted Raised Pan Head Screws for Precision Instruments
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