Products - Bolt Index - Hex Head Bolt / Screw
Hex Head Bolt / Screw
Buy Now
Materials: Grade 5 Medium Carbon Steel Grade 8 Alloy Steel
Diameters to 1" Diameters More than 1" Diameters to 1" Diameters More than 1"
Tensile Strength 120,000 psi MIN 105,000 psi MIN 150,000 psi MIN 150,000 psi MIN
Proof Load Strength 85,000 psi MIN 74,000 psi MIN 120,000 psi MIN 120,000 psi MIN
Rockwell Hardness Rc 25/34 Rc 19/30 Rc 33/39 Rc 33/39


Material Steel
General Requirements As specified in DIN 267 Part 1
Thread Tolerance 6g
Standard DIN 13 Parts 12 and 15
Mechanical Properties Property Class (material) 8.8.10.9.12.9
Standard ISO898 Part 1
Limit deviation, Geometrical tolerances Product Grade

A for product up to size M24 and I<10d or150mn1).
B for products exceeding size M24 and I>10D OR 150mn1.)

ISO 4759 Part 1

Standard As Processed. Property Class 8.8 and above: ( thermally and chemically) Blackened
Surface finish DIN 267 Part 2 shall apply with regard to surface roughness.
DIN 267 Part19 shall apply with regard to permissible surface discontinuities
DIN 267 part9 shall apply with regard to electroplating
DIN 267 part10 shall apply with regard to hot dip galvanizing.
Acceptance inspection DIN 267 part15 shall apply with regard to acceptance inspection

1) Whichever is shorter(see steeped line in the dimension table)
2) Only for screws without surface protection. 6g makes it possible for normal coating thickness to be applied in accordance with DIN267 Part9, the reference line not being exceeded. Depending on the coating thickness required, a larger fundamental deviation shall be selected than that for the g position. this might however, might resistance to stripping of the bolt/nut assembly.