Montgomery Ward MX-27129A Owner's Manual And Parts List page 52

HARDWARE IDENTIFICATION
Illustrated hardware items are only for identification purposes. All hardware items listed throughout this parts
catalog are steel SAE grade five (5) or lower (zinc plated with clear chromate dip) unless parts description
indicates differently. All dimensions are in inches.
WASHER TYPES
EXTERNAL TOOTH INTERNAL TOOTH EXTERNAL-INTERNAL COUNTERSUNK SPRING
LOCK (ET) LOCK (IT) TOOTH LOCK (EIT) EXTERNAL TOOTH LOCK
LOCK
®
•FLAT
Flat washer dimensions given are: Inside Diameter (ID), Outside Diameter (OD)
and Thickness (Thk).
BOLT AND SCREW TYPES
CARRIAGE BOLT TRUSS HEAD BINDER HEAD
PAN HEAD HEXAGON HEAD FILLISTER HEAD ' FLAT HEAD
^ 2 1 8 3 ( • B S l ^Siiiiiii £ j i K i l [ i Z i i i i ! f ^ B i i ) jJX^iliB
ROUND HEAD HEXAGON WASHER OVAL HEAD SQUARE HEAD SOCKET HEAD
6
HEAD
TWELVE POINT
CAP
SLOTTED
SET
SOCKET
SET
L - Measure length between these points.
INTERNAL DRIVE TYPES
e
SLOTTED
CROSS RECESSED
(PHILLIPS)
SIX POINT
SOCKET
TWELVE POINT
SOCKET
Nominal size (fractional diameter or screw number)
- Number of threads per inch
— Length in inches
1/4-20 x 3/4"
NUT TYPES
CLJ
FULL HEXAGON JAM HEXAGON HEXAGON WASHER SQUARE
WING
ACORN
STD. #35