Handan Yongnian Hongji Machinery Parts Co., LTD.,
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ASTM A193 B7 Thread Stud Black Metric Thread/ UNC Thread
Model Number：ASTM A193 B7
Thread Type：Metric Size/Inch Size
Surface Treatment：Black Oxide
Material：Carbon Steel
Standard：Custom Industrial Standard
Brand：Custom OEM & ODM
Brand: HongJi
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Description
QUICK Response
QUICK Quotation
QUICK Delivery
READY TO SHIP DELIVERY
10000+ SKU in warehouse
We Commit for RTS items:
70% items delivered within 5 days
80% items delivered within 7 days
90% items delivered within 10 days
Bulk orders, please contact customer service
975 D M2 M2.5 M3 (M3.5) M4 M5 M6 M8 M10 M12 (M14) M16 (M18) P UNC 0.4 0.45 0.5 0.6 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 UNF / / / / / / / 1 1.25 1.25 1.5 1.5 1.5 UNF / / / / / / / / 1 1.5 / / / L ±10 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 Wt/1000 (Steel) ≈ kg 18.7 30 44 60 78 124 177 319 500 725 970 1330 1650 975 D M20 (M22) M24 (M27) M30 (M33) M36 (M39) M42 (M45) M48 (M52) / P UNC 2.5 2.5 3 3 3.5 3.5 4 4 4.5 4.5 5 5 / UNF 1.5 1.5 2 2 2 2 3 3 3 3 3 3 / UNF / / / / / / / / / / / / / L ±10 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 1000 / Wt/1000 (Steel) ≈ kg 2080 2540 3000 3850 4750 5900 6900 8200 9400 11000 12400 14700 / 
976 D M2 M2.5 M3 (M3.5) M4 M5 M6 M8 M10 M12 (M14) M16 (M18) M20 (M22) P UNF 0.4 0.45 0.5 0.6 0.7 0.8 1 1.25 1.5 1.75 2 2 2.5 2.5 2.5 UNF1 / / / / / / / 1 1.25 1.25 1.5 1.5 1.5 1.5 1.5 UNF2 / / / / / / / - 1 1.5 / / / / / 976 D M24 (M27) M30 (M33) M36 (M39) M42 (M45) M48 (M52) M56 (M60) M64 (M68) M72 P UNF 3 3 3.5 3.5 4 4 4.5 4.5 5 5 5.5 5.5 6 6 / UNF1 2 2 2 2 3 3 3 3 3 3 4 4 4 4 6 UNF2 / / / / / / / / / / / / / / / 
ASME B 18.31.2 d 1/4 5/16 3/8 7/16 1/2 9/16 5/8 3/4 7/8 1/1 1/8 1/4 3/8 d 0.2500 0.3125 0.3750 0.4375 0.5000 0.5625 0.6250 0.7500 0.8750 1.0000 1.1250 1.2500 1.3750 PP UNC 20 18 16 14 13 12 11 10 9 8 7 7 6 UNF 28 24 24 20 20 18 18 16 14 12 12 12 12 8UN - - - - - - - - - - 8 8 8 U UNC min 0.050 0.056 0.063 0.072 0.077 0.084 0.091 0.100 0.111 0.125 0.143 0.143 0.167 max 0.100 0.111 0.125 0.143 0.154 0.167 0.182 0.200 0.222 0.250 0.286 0.286 0.333 UNF min 0.036 0.042 0.042 0.050 0.050 0.056 0.056 0.063 0.072 0.084 0.084 0.084 0.084 max 0.071 0.083 0.083 0.100 0.100 0.111 0.111 0.125 0.143 0.167 0.167 0.167 0.167 8UN min - - - - - - - - - - 0.125 0.125 0.125 max - - - - - - - - - - 0.250 0.250 0.250 ASME B 18.31.2 d 1-1/2 1-5/8 1-3/4 1-7/8 2 2-1/4 2-1/2 2-3/4 3 3-1/4 3-1/2 3-3/4 4 d 1.500 1.625 1.750 1.875 2.000 2.250 2.500 2.750 3.000 3.250 3.500 3.750 4.000 PP UNC 6 - 5 - 4.5 4.5 4 4 4 4 4 4 4 UNF 12 - - - - - - - - - - - - 8UN 8 8 8 8 8 8 8 8 8 8 8 8 8 U UNC min 0.167 - 0.200 - 0.222 0.222 0.250 0.250 0.250 0.250 0.250 0.250 0.250 max 0.333 - 0.400 - 0.444 0.444 0.500 0.500 0.500 0.500 0.500 0.500 0.500 UNF min 0.084 - - - - - - - - - - - - max 0.167 - - - - - - - - - - - - 8UN min 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125 0.125 max 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250 0.250 Product Details
ASTM A193 B7 Thread Stud carbon steel material with professional black oxide blackening surface treatment, standard 7mm outer diameter trapezoidal thread, widely used for 3D printer Z-axis, mini CNC equipment, small automation lifting mechanism, stepper motor linear transmission system.
Black oxide anti-rust film tightly combines with steel base, no peeling, low friction, stable transmission, matched with brass trapezoidal nut to achieve smooth rotary-to-linear motion conversion. We support full customization of pitch, length, shaft end machining, small MOQ factory direct supply, OEM & ODM available.
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About Us
FAQ
1.You are a manufacturing company or trading company?
We are a fastener manufacturer, and our main products are Bolt, Nut, Screw, Anchor and Washer. Meanwhile, we are also a fastener trader with many years experiences in domestic and international market.
2.What quote do you offer?
We offer EXW, FCA(Guangzhou, Foshan, Yiwu, Shanghai, Wenzhou, Urumchi, and many other cities), FOB, CIF, CFR, DAP, DDP sea shipment terms.
3. Can you provide the necessary customs clearance documents
Yes. We are a legal and compliant enterprise of the People's Republic of China, having the formal import and export qualification. FORM E, CO, Invoice with embassy certification are all available for our order.
4.How pay?
T/T, Alibaba Online Payment, Paypal are all available.
5.How transport?
The most common means is sea shipment, if the order quantity is great, this means is the best.
But if the order quantity is little, we advise the air express or air transportation.
Of course, the land transportation is also OK.
Door to Door is also available.
6.Can I order a small list ?
Of course you can. We offer the samples service.
7.Can we print our own logo ?
Yes. We offer the customized service based on a big quantity. OEM and ODM are OK.
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The company's main products cover bolts, nuts, anchor, screws, washers and customized parts, casting parts, built-in fitting parts and steel