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Precise Black Steel Bolts / Stainless Steel Nuts And Bolts Stamping Process

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Precise Black Steel Bolts / Stainless Steel Nuts And Bolts Stamping Process

Country/Region china
City & Province handan hebei
Categories Other General Mechanical Components

Product Details

Square Thread Bolts / Steel Hex Bolt And Nut Grade 8.8 Black oxide Or Galvanized

 

 

Product information:

 

Welcome to open our product's detail page,This product is Square Thread Bolts / Steel Hex Bolt And Nut Grade 8.8 Black oxide Or Galvanized,the type is square head bolt,we also have hex head bolt.the grade is 8.8,we also have 4.8,6.8,8.8,10.9,12.9.The surface of product is black oxide,we also have plain,zinc plated,galvanized.The color have white,blue,yellow,black.These and the length can be customized according to your requirements.If there are standards, they can be customized.We can produce according to DIN,ISO,GB,ANSI,ASTM,JIS,etc.The anticorrosive performance of this square head bolt is through salt Spray Test Reach 1000-2000 Hours.We not only have square head bolts, but also square nuts.A square head bolt with a square nut.

Our delivery time normally in 30-40 days.Delivery time should be calculated according to the quantity and processing of the goods.Goods in stock need within 7 days or so.The terms of trade we use are:FOB,CIF,CFR,etc.

The product application of bolts is very wide and can be applied to:Marchinery, Chemical Industry, Environmental,Building,ect.

 

Other fastener information:

 

NameBolt, Screw, Nut, Washer, Rod, Fastener, Stamping, Garage door parts
StandardDIN, IFI, ISO, JIS, AS, BS, EN, SAE, ASTM
Grade

Bolt: Gr 4.6 4.8 5.6 5.8 8.8 10.9 12.9 14.9 (DIN)

Bolt: Gr 2 Gr 5 Gr 8 (ASTM)

Nut: Gr/8/ Gr 8 Gr10 Gr 12 (DIN)

Nut: Gr 2 Gr 5 Gr 8 (ASTM)

ThreadUNC, UNF, UNEF, M, BSW, BSF, TR, ACME, NPT TP
Material

Carbon steel (#1035,#1045, 40Cr, 35CrMo, 42CrMo, B7, 20Mn2, M20)

Stainless Steel (303, 304 , 304L, 316, 316L)

Brass (H58, H59, H62)

SizeM2.5-M72( DIN) 3/16’’-3’’ (ASTM)
Finish

Plain, Zinc plated, Passivated, Nickle, plated, H.D.G.,Black Oxided, Dacromet, Geomet,etc

Production TechniqueCold forging, Hot forming, Machining, Heat treatment, Staming, etc
Production Capacity300tons per month
Export MarketsGlobal

 

Advantage:

  • Professional Manufacturer: All of our Fastener are designed and manufactured according to buyers' specification and performance.
  • Quality is guaranteed: Durability testing and critical technical design to enhance fasteners lifetime.
  • Cost effective: Competitive prices with factory directly supply
  • Customized Ideal Fasteners: customized services according to the samples and drawings offered.
 

The chart description:

 

This is the specification table of square head bolt,it contains the specific data of square head bolt,including nominal diameter,screw pitch and so on.nominal diameter is from M16 to M24,it corresponds to a different pitch.Contains the maximum and minimum values.These data correspond to the following details drawing.

 

d(nominal diameter)M16M18M20M22M24M27M30M36M42
P(screw pitch)2.02.52.52.5333.544.5
bL≤1253442465054606678/
125<L≤200404852566066728496
200<L5361656973798597109
kmax9.4512.913.914.915.917.9020.0524.0527.05
min8.5511.1012.1013.1014.1016.1017.9521.9524.95
smax212730343641465565
min20.1626.1629.163335404553.863.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Units: mm

 

nomnial length L  Quality of every 1000 pieces of steel≈kg
2021.01      
2523.4634.0948.48    
3025.9237.6553.3674.61   
3528.3741.2158.2381.16111144.5 
4030.8344.7763.1187.7119.1154.8 
4533.2948.3467.9894.24127.2165 
5035.7451.972.86100.8135.4175.3226.5

 

This is the details drawing of square head bolt.The pictures of bolt horizontal plane figure on the left,the right is the top view of the bolt.

 

 

 

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