|
 Hardware - Nuts - Tinnerman Nuts
|
TINNERMAN
|
|
These speed nuts
are self-locking steel fasteners. Locking action is derived from
force exerted by two arched prongs against the root of the screw
thread and by the spring ten- sion of the prongs and base. The
combined forces of the thread lock and spring tension provide
a vibration proof fastening. Speed nuts retain their spring tension
& may be used repeatedly without losing their self-locking
effective- ness. Suitable for numerous non-structural applications.
Finish: Phosphate-coated with three coats
of olive drab paint.
|
|
IMPORTANT: Speed nuts for aircraft are designed to fit standard
AN530-AN531 type B sheet metal screws only. Do not use pointed
type A sheet metal screws with aircraft Speed nuts. There is
a difference in root diameter and thread pitch. Screw lengths:
B type sheet metal screws have a blunt taper at the end. To be
certain the fastener prongs grip on the full root diameter, the
screw should protrude two to three threads beyond the prongs.
See the illustration.
|
|
FLAT TYPE (NAS 446) |
| Used to replace threaded nuts,
lock washers, and spanner washers; weigh less than other types
of self-locking aircraft fasteners. Can be applied faster, easier,
and are vibration resistant. Provide maximum holding power at
minimum cost per fastener. Turned-up ends prevent scoring of
surfaces. Use with type B tapping screws. |
|
"U" TYPE
(NAS 395)
Snaps
over edge of panels or into center hole locations. Holds itself in place
for blind assembly. "Floats" free for easy hole alignment. |
"U" Type Design Variations |
|
 |
|
 |
| Part No. |
Type B Screw Size |
Design Variation |
P
Panel Thickness Range |
A Length |
B Width |
C
Max Center of Hole to Edge |
G
Panel Hole Diameter |
T
Material Thickness |
Price |
Buy |
A1784-6Z-1D |
#6 |
E |
.025-.051 |
0.610 |
0.440 |
0.281 |
0.250 |
0.025 |
$0.33 |
|
A1785-67-1D |
#6 |
E |
.025-.064 |
0.840 |
0.440 |
0.500 |
0.281 |
0.025 |
$0.36 |
|
A1789-8Z-1D |
#8 |
E |
.025-.051 |
0.610 |
0.440 |
0.281 |
0.250 |
0.028 |
$0.27 |
|
A1787-8Z-1D |
#8 |
E |
.025-.064 |
0.840 |
0.440 |
0.500 |
0.281 |
0.028 |
$0.28 |
|
A1788-8Z-1D |
#8 |
AE |
.025-.064 |
0.840 |
0.440 |
0.500 |
0.170 |
0.028 |
$0.24 |
|
A1348-8Z-1D |
#8 |
AE |
.025-.064 |
0.730 |
0.500 |
0.343 |
0.170 |
0.028 |
$0.42 |
|
A1932-8Z-1D |
#8 |
BE |
.032-.051 |
0.580 |
0.500 |
0.265 |
0.343 |
0.025 |
$0.38 |
|
A1786-8Z-1D |
#8 |
CEH |
.040-.051 |
0.530 |
0.500 |
0.218 |
0.250 |
0.028 |
$0.21 |
|
A1350-10Z-1D |
#10 |
AE |
.025-.064 |
0.730 |
0.500 |
0.343 |
0.218 |
0.031 |
|
|
A1787-10Z-1D |
#10 |
E |
.025-.064 |
0.840 |
0.440 |
0.500 |
0.281 |
0.031 |
$0.35 |
|
A1758-10Z-1D |
#10 |
E |
.081-.094 |
0.620 |
0.440 |
0.281 |
0.281 |
0.031 |
$0.30 |
|
HOW TO APPLY SPEED NUT FASTENERS |
| FLAT TYPE |
"U" TYPE |
 |
Fastener
is positioned over screw clearance hole with screw-engaging prongs
pointing up or outward. Screw is started into nut by hand from
the underside. |
 |
Push
into position with thumb until extrusion on lower leg snaps into
screw hole. The fastener "floats" in screw-receiving
position to correct for normal misalignment in panel mounting
holes. |
| |
|
|
Screw can
be power-driven into locked position (when base arch of fastener
is flat) or a hand screw driver can be used. No wrench is required,
finger pressure will prevent it from turning. |
|
Place
second panel in position and drive screw. Access to opposite
side is unnecessary. Flush mounting can be made by embossing
either panel. |
|
|
|
