MS16998-40
Military Standard Socket Head Cap Screw
Fastener Length: 3/8", Thread: 1/4-28, Head Width: 3/16", Thread Length: 3/8", MS16998 series screw






MS16998-40 Datasheet Features and Specification
Quick Specs
Thread Size | 1/4 |
Thread Qty | 28 |
Thread Series | UNF |
Thread Class | 3A |
Drive Style | Hexagon |
Material | Steel |
Length | 3/8 |
Additional Information
Alternate Part Numbers
SKU / Model: | MS1699840 |
NSN: | 5305-00-983-6657 |
FSC: | Screws / 5305 |
Product Series: | MS16998 |
Pack Weight (Approx.) | 0.507 lb |
Minimum Qty (MOQ): | 50 |
Schedule B: | 7318.15.6080 |
ECCN: | EAR99 |
National Motor Freight: | 093486, Bolts,nuts Or Screws, Noi (sub 3) |
Download PDF Version MS16998-40_Military-Fasteners-com.pdf |
|
![]() ![]() |
* report an issue on this page
Frequently bought together
Other customers frequently bought these along with MS16998-40

MS16996-10
Socket Head Cap Screw
in Screws
Length: 1/2", thread: 10-32, hexagon, socket head, corrosion resistant steel, MS16996 series screw

MS16998-41
Machine Screw
in Screws
Fastener Length: 1/2", Thread: 1/4-28, Head Width: 3/16", Thread Length: 1/2", MS16998 series screw

MS21060L3
Self-Locking Nutplate
in Nuts
Thread: 10-32, self locking, two lug, floating, low height, corrosion resistant steel, with dry film lube, plain rivet holes, MS21060 series nut
More MS16998 socket head cap screws
Fastener Length: 1-3/4in., Thread: 1/2-20, Head Width: 3/8in., Thread Length: 1-41/64in., 5305-00-983-7457
Fastener Length: 1-1/2in., Thread: 1/2-20, Head Width: 3/8in., Thread Length: 1-25/64in.
Fastener Length: 2-63/64in., Thread: 3/8-24, Head Width: 5/16in., Thread Length: 1-1/2in.
$13.14 EA, Fastener Length: 2-1/4in., Thread: 3/8-24, Head Width: 5/16in., Thread Length: 1-1/4in. screw
Fastener Length: 1-1/2", Thread: 3/8-24, Head Width: 5/16", Thread Length: 1-1/2"
$5.94 EA, Fastener Length: 1-1/2in., Thread: 3/8-24, Head Width: 5/16in., Thread Length: 1-29/64in.
Product Image Gallery
Product code MS16998-40





Have a question
If you require a quote on this or any product please visit our quote request page »
Browse our frequently asked questions page.
You may contact us by phone at +1 (904) 543-6395 or
email us using our contact form.
Our hours of operation are 8:00am - 6:00pm EST
Customer Reviews

Military Fasteners did an excellent job fulfilling my most recent order. This superior performance is typical for ACS. My order arrived in excellent condition within just 3 days of placing the order. Well done!
(Translated by Google) Excellent service, fast and courteous (Original) Excellent service , rapide et courtois
Military fasteners has what we need in stock, ships quickly with all the proper paperwork. Much appreciated
The customer service from Trisha Hawkins at Military Fasteners was exceptional.
Please complete this form if you're having an issue with ordering this item or this item displays invalid or innacurate information or specifications. We thank you for taking the time to report issues so that we may better serve you.