Flat Washers,Spring Washers,Tooth Lock Washers

Size Standards:

Description	DIN	ASME	ISO
Hex Bolts 六角螺栓	DIN 933, DIN 931, DIN 960, DIN 961, etc.	ASME B18.2.1, ASME B18.2.3.5M, ASME B18.2.3.6M, ASME B18.2.3.1M, etc.	ISO 4014, ISO 4015, ISO 4017, etc.
Thread Stud Bolts 螺柱	DIN 976, DIN 975	ASME / ANSI B18.31.2, ASME / ANSI B18.31.2M	-
Hexagon Nuts 六角螺母	DIN 934, DIN 439, DIN 555, DIN 936, DIN 970, etc.	ASME B18.2.2, ASME B18.2.6, ASME B18.2.4.1, ASME B18.2.4.6, ASME B18.2.4.5, etc.	ISO 4032, ISO 4033, ISO 4034, ISO 4035, ISO 4036, etc.
Flat Washers 平垫圈	DIN 125, DIN 9021	ASME B18.22.1	ISO 7089 ISO 7090 ISO 7091
Spring Washers 弹簧垫圈	DIN 127, DIN 7980	ASME B18.21.1	ISO 10673
Tooth Lock Washers 齿锁垫圈	DIN 6797, DIN 6798	ASME B18.21.1
Hex Socket Head Cap Screw 内六角圆柱头螺钉	DIN 912	ASME / ANSI B18.3	ISO 4762, etc.
Plugs 堵头	DIN 906, DIN 908, DIN 909, DIN 910, DIN 5586,DIN 7604, etc.	-	-
U-bolts U型螺栓	DIN 3570	-	-
Processing technology: Cold / Hot Forging, CNC Turning，thread rolling Products with special requirements can be customized according to drawings.

Materials:

Type	Alloy	UNS	ASTM/AISI	W. Nr.	EN	JIS	GB	Material Standard	Fastener Material Standard	Welding Grade	Welding Standard
Special Alloy Steel	Inconel 718	N07718		2.4668	NiCr19Fe19NbMo3		GH4169	ASTM B637, API STD 6ACRA,	API 20F ASTM A1014	ERNiFeCr-2 (N07718)	AWS 5.14
	Alloy 725	N07725						ASTM B637, ASTM B805 API STD 6ACRA,	API 20F
	Incoloy 925	N09925						ASTM B637, API STD 6ACRA,	API 20F
	NIMONIC 80A	N07080		2.4952	NiCr20TiAl			DIN 17742,DIN 10302 ASTM B637	DIN 10269 DIN 17240
	Nitronic 50 (B8R,B8RA)	S20910	XM-19	1.3964	X2CrNiMnMoNNb21-16-5-3			ASTM A276 ASTM A479	ASTM A193 ASTM A194	ER209 (S20980)	AWS 5.9
	Nitronic 60 (B8S,B8SA)	S21800	218			218		ASTM A276 ASTM A479	ASTM A193 ASTM A194	ER218 (S21880)	AWS 5.9
	Super Duplex 60	S32760		1.4501	X2CrNiMoCuWN25-7-4	F55		ASTM A276 ASTM A479	ASTM A1082
	Super Duplex 50	S32750	2507	1.4410	X2CrNiMoN25-7-4	F53		ASTM A276 ASTM A479	ASTM A1082
	S32205	S32205	2205	1.4462	X2CrNiMoN22-5-3	SUS 329J3L		ASTM A276 ASTM A479	ASTM A1082
	S31803	S31803				F51		ASTM A276 ASTM A479	ASTM A1082
	17-4PH	S17400	630	1.4542	X5CrNiCuNb16-4	SUS 630		ASTM A564	ASTM A1082
	17-7 PH	S17700	631	1.4568	X7CrNiAl17-7	SUS 631		ASTM A564	ASTM A1082
	15-7 PH	S15700	632			SUS 632		ASTM A564	ASTM A1082
	Incoloy A286 / Aisi 660	S66286		1.4980			GH2132	ASTM A638	ASTM A453
	254SMo (B8MLCuN,B8MLCuNA)	S31254		1.4547	X1CrNiMoCuN20-18-7	F44		ASTM A276 ASTM A479	ASTM A193 ASTM A194
	AL-6XN (9C,9CA)	N08367		1.4529	X1NiCrMoCuN25-20-7		00Cr20Ni18Mo6CuN‌	ASTM A479 ASTM B564 ASTM B691	ASTM A194
	B4B,B4C	S42200	422 (616)					ASTM A565	ASTM A437
	B4D	S42200	422 (616)					ASTM A565	ASTM A437
	B21		Cr-Mo-V						ASTM A540
	B22		4142-H						ASTM A540
	B23		E-4340-H						ASTM A540
	B24		4340 Mod						ASTM A540
	B24V		4340 V Mod						ASTM A540
Stainless Steel	B8,B8A	S30400	304			304			ASTM A193, ASTM A194,ASTM A320
	B8N,B8NA	S30451	304N	1.4306	X5CrNiN19-9	304N			ASTM A193 ASTM A194
	B8LN,B8LNA	S30453	304LN	1.4311	X2CrNiN18-10	304LN			ASTM A193, ASTM A194,ASTM A320
	B8C,B8CA	S34700	347			347			ASTM A193, ASTM A194,ASTM A320
	B8CLN,B8CLNA	S34751	347LN			347LN			ASTM A193 ASTM A194
	B8CLNCuB,B8CLNCuBA	S34752	347LN			347LN			ASTM A193
	B8ML4CuN,B8ML4CuNA	S31730	317			317			ASTM A193
	B8T,B8TA	S32100	321			321			ASTM A193, ASTM A194,ASTM A320
	B8P,B8PA	S30500	305			305			ASTM A193, ASTM A194,ASTM A320
	B8F,B8FA	S30300,S30323	303			303			ASTM A194 ASTM A320
	B8M,B8MA B8M2,B8M3	S31600	316	1.4401	X5CrNiMo17-12-2	316			ASTM A193, ASTM A194,ASTM A320
	B8MN,B8MNA	S31651	316N			316N			ASTM A193 ASTM A194
	B8MLN,B8MLNA	S31653	316LN	1.4429	X2CrNiMoN17-13-3	316LN			ASTM A193, ASTM A194,ASTM A320
Ferrtic Steel	B5								ASTM A193
	B6,B6X	S41000	410			410			ASTM A193
	B7,B7M								ASTM A193
	B16								ASTM A193 ASTM A194
Carbon Steel	L7,L7M,L70								ASTM A320
	L7A,L71		AISI 4037						ASTM A320
	L7B,L72		AISI 4137						ASTM A320
	L7C,L73		AISI 8740						ASTM A320
	L43		AISI 4340						ASTM A320
	L1								ASTM A320