볼트 및 너트류 제조업

NOVEL PRECISION METAL CO., LTD. was founded on May 1st.1991 by experts in the Fasteners field. 
With an external competitiveness strength and an internal operations stability we continuously grow with our customers. 
NOBEL PRECISION METAL CO., LTD. developed a system that Received good reactions from industrial equipment, electrical equipment, ship building yard, land-sea structures. Big or small size plants…and compliment from customers. These results were achieved thanks to customers belief and interest in our products.

SIZE NO.		APPLICABLE SEREW∮		D		D		T		NO. OF TOOTH
INTERNAL	EXTERNAL	MITER	INCH	CTITERIA FIGURE	ALLOWABLE ERROR	CTITERIA FIGURE	ALLOWABLE ERROR	CTITERIA FIGURE	ALLOWABLE ERROR	INTERNAL	EXTERNAL
AW – 2	BW – 2	2	–	2.2	+0.20	4.8	0-0.3	0.3	±0.025	7	8
2.3	2.3	2.3	–	2.5		5.3		0.3		7	8
2.5	2.5	2.5(2.6)	–	2.7		5.7		0.3		7	8
3	3	3	–	3.2		6.5	0-0.4	0.45	±0.035	7	8
3.5	3.5	3.5	–	3.7		7.5		0.45		8	8
4	4	4	–	4.3		8.5		0.45		8	8
4.5	4.5	4.5	–	4.8		9.5		0.5		8	8
5	5	5	–	5.3		10		0.6	±0.04	8	10
6	6	6	–	6.4	+0.30	11	0-0.5	0.6	±0.04	9	12
7	–	7	–	7.4		13		0.8	±0.05	10	–
8	8	8	–	8.4		15		0.9		9	12
3/8	3/8	–	3/8	9.8		17.5		0.9		9	12
10	10	10	–	10.5	+0.40	18		0.9		9	12
7/16	7/16	–	7/16	11.4		19.5	0-0.6	0.9		10	12
12	12	12	–	12.5		21		1	±0.055	10	12
1/2	1/2	–	1/2	13		22.5		1		10	12
14	14	14	–	14.5		23		1		10	12
16	16	16	5/8	16.5		26		1.2	±0.065	12	14
18	18	18	–	19	+0.50	29		1.2		12	14
3/4	3/4	–	3/4	19.6		32	0-0.8	1.2		12	14
20	20	20	–	21		32		1.4	±0.07	12	14
22	22	22	7/8	23		35		1.4	±0.07	14	16
24	24	24	–	25		38		1.6	±0.08	14	16
1″	1″	–	1″	26		41		1.6	±0.08	14	16

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