AN510 REV 7
10. Material identification:
Corrosion resistant steel screws with nominal sizes #5 (.1250) and larger shall be permanently
marked with one dash ("-"). Markings shall be placed on the top of head and indented.
Method and size of markings shall conform to the requirements for permanent markings
specified in SAE AS478.
11. CODE:
No code between first and second dash number = slotted head screw (see note 7).
"R" between the first and second dash number = cross-recessed head screw.
No code before first dash number = carbon steel with cadmium plating
"B" before first dash number = brass screw with black chemical finish
"PB" before first dash number = brass screw with cadmium plating
"UB" before first dash number = brass screw with no plating or finish
"C" before first dash number = corrosion resistant steel screw passivated
"DD" before first dash number = aluminum alloy screw anodized
Examples:
AN510-4-8
=
Slotted Head Screw, Carbon Steel, Cadmium Plated, 4-48 UNF-2A Thread, .500
Inch Long
AN510-4R8
=
Cross=Recessed Head Screw, Carbon Steel, Cadmium Plated, 4-48 UNF-2A
Thread, 500 Inch Long
AN510B4-8
=
Slotted Head Screw, Brass, Black Chemical Finish, 4-48 UNF-2A Thread, 500
Inch Long
AN510B4R8
=
Cross-Recessed Head Screw, Brass, Black Chemical Finish, 4-48 UNF-2A
Thread, 500 Inch Long
AN510PB4-8 =
Slotted Head Screw, Brass, Cadmium Plated, 4-48 UNF-2A Thread, 500 Inch
Long
AN510PB4R8 =
Cross-Recessed Head Screw, Brass, Cadmium Plated, 4-48 UNF-2A Thread, 500
Inch Long
AN510UB4-8 =
Slotted Head Screw, Brass, Unfinished, 4-48 UNF-2A Thread, 500 Inch Long
AN510UB4R8 =
Cross-Recessed Head Screw, Brass, Unfinished, 4-48 UNF-2A Thread, 500 Inch
Long
AN510C4-8
=
Slotted Head Screw, Corrosion Resistant Steel, Passivated, 4-48 UNF-2A Thread,
500 Inch Long
AN510C4R8
=
Cross-Recessed Head Screw, Corrosion Resistant Steel, Passivated, 4-48 UNF-
2A Thread, 500 Inch Long
AN510DD4-8 =
Slotted Head Screw, Aluminum Alloy, Anodized, 4-48 UNF-2A Thread, 500 Inch
Long
AN510DD6R8 =
Cross-Recessed Head Screw, Aluminum Alloy, Anodized, 6-40 UNF-2A Thread,
500 Inch Long
5
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