HEAD MARKING SHALL BE RAISED OR DEPRESSED (.O10 MAXI AND ARRANGED AS FOLLOWS:
MARK WITH BASIC PART NUMBER ("NAS'OPTIONAL) EXCEPT MARK .llXHO SIZE
MARK WITH MANUFACTURER'S SYMBOL OR TRADEMARK, GRIP DASH NUMBER.
"L" OR "P". WHEN APPLICABLE AND RECESS NUMBER ENCIRCLED. RECESS NUMBER
70 OE APPnOXlMATELY 25% LAAGEii THAN OTHER NUMOERS.
"L" InLNTII 11:s IiOL1 S WIT1 I í)l'TIClNAL LOCKING ELLMCNT.
"P" IüENTlkltS UOLlS WITII I'ATCII IYI'L: I-OXKING LLLMLNT ONLY