Howmet Fastening Systems
Howmet Fastening Systems
Phone: Sales +1 800 992 4444
Technical Support +1 310 784 6409
Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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Long self locking, 1025°F, silver plated.
SRQB( )L0074 = SAE AS3505-( ) & SBAC AS52790-93 & Rolls Royce U760329-30.
Slimsert Silver Plate
Unit of Measure
Items Image
SRQB192L0074
Long, Self Locking, 1025°F Silver Plated 		Image
SRQB258L0074
Long, Self Locking, 1025°F Silver Plated 		Image
SRQB314L0074
Long, Self Locking, 1025°F Silver Plated 		Image
SRQB374L0074
Long, Self Locking, 1025°F Silver Plated 		Image
SRQB430L0074
Long, Self Locking, 1025°F Silver Plated
SAE Part Number N/A AS3505-01 N/A AS3505-02 N/A AS3505-03 N/A AS3505-04 N/A AS3505-05
Material Type N/A Inconel 718 per AMS 5662
Finish N/A Internal surfaces: Silver plate per AMS2411, .0002 min. thickness
External surfaces: Passivate per AMS 2700
Heat Treat N/A 37-43 HRc
Internal Thread N/A 0.1900-32 UNJF-3B N/A 0.2500-28 UNJF-3B N/A 0.3125-24 UNJF-3B N/A 0.3750-24 UNJF-3B N/A 0.4375-20 UNJF-3B
External Thread N/A 0.2500-28 UNJF-3A N/A 0.3125-24 UNJF-3A N/A 0.3750-24 UNJF-3A N/A 0.4375-20 UNJF-3A N/A 0.5000-20 UNJF-3A
Minor Dia Max. N/A 0.2170 in N/A 0.2785 in N/A 0.3405 in N/A 0.4010 in N/A 0.4630 in
C ±.003 N/A 0.196 in N/A 0.256 in N/A 0.318 in N/A 0.382 in N/A 0.444 in
D ±.010 N/A 0.475 in N/A 0.595 in N/A 0.720 in N/A 0.857 in N/A 1.000 in
E Ref. N/A 0.280 in N/A 0.350 in N/A 0.420 in N/A 0.500 in N/A 0.580 in
F ±.005 N/A 0.090 in N/A 0.090 in N/A 0.090 in N/A 0.120 in N/A 0.120 in
G ±.005 N/A 0.075 in N/A 0.075 in N/A 0.075 in N/A 0.105 in N/A 0.105 in
H Ref. N/A 0.157 in N/A 0.210 in N/A 0.266 in N/A 0.322 in N/A 0.377 in
J N/A 20.000 N/A 24.000 N/A 29.000 N/A 34.000 N/A 39.000
Approx. Weight N/A 2.175 lbs/1000 pcs N/A 3.645 lbs/1000 pcs N/A 5.667 lbs/1000 pcs N/A 7.660 lbs/1000 pcs N/A 10.808 lbs/1000 pcs
K Thread N/A 0.2500-28 UNJF N/A 0.3125-24 UNJF N/A 0.3750-24 UNJF N/A 0.4375-20 UNJF N/A 0.5000-20 UNJF
L Tap Hole N/A 0.220-0.225 in N/A 0.280-0.285 in N/A 0.342-0.347 in N/A 0.403-0.408 in N/A 0.467-0.472 in
M +.005 -.000 N/A 0.249 in N/A 0.311 in N/A 0.374 in N/A 0.436 in N/A 0.499 in
N Serration Major Dia +.003 -.002 N/A 0.266 in N/A 0.336 in N/A 0.402 in N/A 0.459 in N/A 0.525 in
P ±.006 N/A 0.297 in N/A 0.364 in N/A 0.431 in N/A 0.486 in N/A 0.553 in
R Cbore Depth ±.005 N/A 0.082 in N/A 0.082 in N/A 0.082 in N/A 0.113 in N/A 0.113 in
T Serration Depth ±.010 N/A 0.077 in N/A 0.077 in N/A 0.077 in N/A 0.108 in N/A 0.108 in
U N/A 0.5100 in N/A 0.6300 in N/A 0.7550 in N/A 0.9100 in N/A 1.0350 in
V N/A 20 N/A 24 N/A 29 N/A 34 N/A 39
W Boss Dia Min. N/A 0.490 in N/A 0.550 in N/A 0.620 in N/A 0.680 in N/A 0.740 in
Step Drill Part Number N/A SR19D N/A SR25D N/A SR31D N/A SR37D N/A SR43D
Wobble Broach N/A SRPBT19WBA N/A SRPBT25WBA N/A SRPBT31WBA N/A SRPBT37WBA N/A SRPBT43WBA
Serration Gage N/A SR19HSG N/A SR25HSG N/A SR31HSG N/A SR37HSG N/A SR43HSG
Drive Wrench Number N/A SR19WA N/A SR25WA N/A SR31WA N/A SR37WA N/A SR43WA
Swage Tool N/A SRQ19SA N/A SRQ25SA N/A SRQ31SA N/A SRQ37SA N/A SRQ43SA
Y N/A 0.209 Inch N/A 0.278 Inch N/A 0.343 Inch N/A 0.406 Inch N/A 0.468 Inch
Z N/A 0.072 Inch N/A 0.070 Inch N/A 0.084 Inch N/A 0.091 Inch N/A 0.095 Inch
After Swage Gage N/A SRQ19GSDA N/A SRQ25GSDA N/A SRQ31GSDA N/A SRQ37GSDA N/A SRQ43GSDA
Removal Tool Part Number N/A SR19R N/A SR25R N/A SR31R N/A SR37R N/A SR43R
AA Max. N/A 0.101 in N/A 0.101 in N/A 0.101 in N/A 0.133 in N/A 0.133 in