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Date: July 24, 2013
REV-02
MS.FPOZI.Z
Fastenal Product Standard
Machine Screw, Flat Head, Pozi Drive Type 1A, Zinc Plated
The information below lists the required dimensional, chemical and physical characteristics of the products in this purchase order. If
the order received does not meet these requirements, it may result in a supplier corrective action request, which could jeopardize your
status as an approved vendor. Unless otherwise specified, all referenced consensus standards must be adhered to in their entirety.
A
Size
H
Head Diameter
Max.
0.112
0.162
0.212
0.262
0.312
0.362
0.477
0.597
0.717
0
2
4
6
8
10
1/4
5/16
3/8
Min.
0.096
0.144
0.191
0.238
0.285
0.329
0.442
0.556
0.670
Head Height Recess Dia
Ref.
0.026
0.037
0.049
0.060
0.072
0.083
0.110
0.138
0.165
P
M
Ref.
0.062
0.096
0.122
0.168
0.182
0.198
0.276
0.358
0.386
Recess Gaging Depth
Max.
0.037
0.053
0.079
0.091
0.107
0.122
0.151
0.193
0.222
Min.
0.021
0.037
0.063
0.073
0.089
0.104
0.133
0.175
0.204
Driver Size
0
1
1
2
2
2
3
4
4
Specification Requirements:
•
Standard:
•
•
•
Drive Style:
Material:
Thread Requirements:
•
Finish:
ASME B18.6.3 **Exception: screws 6 inches and shorter are fully
threaded.
Type IA
Carbon Steel, 60,000 PSI Min. Tensile
ASME B1.1 UNC & UNF Class 2A. (Fastenal will inspect and
accept with a 1A no-go gauge)
Fe/Zn 3AT Per ASTM F1941