Howmet Fastening Systems
Howmet Fastening Systems
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Email: HFSTechSupport@howmet.com
Website: www.hfs.howmet.com
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This series utilizes a variety of grommets which must be installed into the top panel. They significantly enhance the system’s performance.
Contact us for strengths for stainless steel stud assemblies and for other styles, materials, or finishes.
Stainless Steel Stud Assembly, 40S45 - Cross Recess Head
Unit of Measure
1 2 3 

Item #

Stud Material

Head Style

Finish

L

S

Weight/100

40S45-16B N/A 300 CRES per ASTM A276, ASTM A580, AMS-QQ-S-763, ASTM A493 N/A Cross Recess N/A Passivate per AMS2700 N/A 0.833-0.843 in N/A 1.110 in N/A 1.242 lb
40S45-17B N/A 300 CRES per ASTM A276, ASTM A580, AMS-QQ-S-763, ASTM A493 N/A Cross Recess N/A Passivate per AMS2700 N/A 0.863-0.873 in N/A 1.140 in N/A 1.262 lb
40S45-18B N/A 300 CRES per ASTM A276, ASTM A580, AMS-QQ-S-763, ASTM A493 N/A Cross Recess N/A Passivate per AMS2700 N/A 0.893-0.903 in N/A 1.170 in N/A 1.281 lb
40S45-19B N/A 300 CRES per ASTM A276, ASTM A580, AMS-QQ-S-763, ASTM A493 N/A Cross Recess N/A Passivate per AMS2700 N/A 0.923-0.933 in N/A 1.200 in N/A 1.301 lb
40S45-20B N/A 300 CRES per ASTM A276, ASTM A580, AMS-QQ-S-763, ASTM A493 N/A Cross Recess N/A Passivate per AMS2700 N/A 0.953-0.963 in N/A 1.230 in N/A 1.320 lb
Unit of Measure
1 2 3