Description:

Bolt with a wide, countersunk flat head, a shallow conical bearing surface, an integrally-formed square neck under the head, and a
unified thread pitch.

 

Advantages:

Popular use is in work bench units, conveyor systems, and other products were leveling of the unit is a requirement.

 

Elevator Bolts

 

 

ELEVATOR BOLTS ANSI/ASME B18.5
Nominal Size
or Basic Bolt
Diameter
E
A
H
O
p
Body Diameter
Head Diameter

Head Height

Square Width
Square Depth
Max
Min

Max

Edge

Sharp

Min

Edge

Sharp

Min

Edge

Flat
Max
Min
Max
Min
Max
Min
1/4
0.2500
0.260
0.237
1.008
0.969
0.938
 0.098
0.078
0.280
0.245
0.219
0.188
5/16
0.3125
0.324
0.298
1.227
1.188
1.157
0.114
0.094
0.342
0.307
0.250
0.219
3/8
0.3750
0.388
0.360
1.352
1.312
1.272
0.145
0.125
0.405
0.368
0.250
0.219
 
Tolerance on Length
Nominal Bolt Size
Nominal Bolt Length
Up to 1 in., incl.
Over 1 in. to 2-1/2 in., incl.
Over 2-1/2 in. to 4 in., incl.
1/4 thru 3/8
+0.02, -0.03
+0.02, -0.04
+0.04, -0.06

 

‡Length of an elevator bolt is measured from the top of the head to the extreme end of the bolt.

 

 

 

 

 

 

Email: E-mail Fastenerz.com

sales@fastenerz.com


Credit Accepted:
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