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TINNERMAN

Hardware_Fasteners_Tinnerman_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.

Screw Size	Part No.	Buy
#4	A1776-4Z-1D
#6	A1777-6Z-1D
#8	A1778-8Z-1D
#10	A1779-10Z-1D

"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

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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 Dia	T Material Thickness	Buy
A1784-6Z-1D	#6	E	.025-.051	0.610	0.440	0.281	0.250	0.025
A1785-67-1D	#6	E	.025-.064	0.840	0.440	0.500	0.281	0.025
D1274-8-1	#8	DEH	.025-.032	.500	.500	.250	.281	.028
A1789-8Z-1D	#8	E	.025-.051	0.610	0.440	0.281	0.250	0.028
A1787-8Z-1D	#8	E	.025-.064	0.840	0.440	0.500	0.281	0.028
A1788-8Z-1D	#8	AE	.025-.064	0.840	0.440	0.500	0.170	0.028
A1348-8Z-1D	#8	AE	.025-.064	0.730	0.500	0.343	0.170	0.028
A1932-8Z-1D	#8	BE	.032-.051	0.580	0.500	0.265	0.343	0.025
A1786-8Z-1D	#8	CEH	.040-.051	0.530	0.500	0.218	0.250	0.028
A1787-10Z-1D	#10	E	.025-.064	0.840	0.440	0.500	0.281	0.031
A1758-10Z-1D	#10	E	.081-.094	0.620	0.440	0.281	0.281	0.031

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.

	= Available today
	= Available in 3-10 days
	= Available in 12 days
	= Unknown (3 weeks or more)

A1776-4Z-1D	TINNERMAN NUT A1776-4Z-1	0.26 EUR
A1777-6Z-1D	TINNERMAN NUT FLAT A1777-6Z-1	2.31 EUR
A1778-8Z-1D	FLAT TINNERMAN NUT A1778-8Z1D	0.23 EUR
A1779-10Z-1D	TINNERMAN NUT # A1779-10Z-1	0.27 EUR
A1784-6Z-1D	TINNERMAN NUT A1784-6Z1D	0.40 EUR
04-00362	"U" TYPE TINNERMAN A1785-6Z-1D	0.44 EUR
A1787-10Z-1D	"U" TYPE NAS395 (A1787-10Z-1)	0.43 EUR