lots of rigging parts on sail boat masts are drilled and clipped SS
you really do NOT want them coming apart

the bit has to be harder then the work part [SS bolt]
so no big box store china junk drill sets
cobalt or ti
keep the bit from over heating go slow and let it cool recoat with wax
re-sharpen often
expect to break or burn out bits so get a bunch

Depends on what kind of stainless you are talking about. There are many.
If it's typical 300 series (316, 309L), it's soft and cuts like butter but galls easily.
If you're talking 400 series it is usually heat-treated and can be pretty darn hard.

BTW ......

https://www.mcmaster.com/#catalog/124/3241/=1dgumd8


Page 3241

Steel Wire-Lockable Hex Head Screws

Fully Threaded

Partially Threaded

Wire these screws together through the hole in the head to get more vibration resistance than any other screw (wire sold separately). They are made from zinc-plated Grade 5 steel that’s stronger than stainless steel and provides corrosion resistance in wet environments. Length is measured from under the head.

For technical drawings and 3-D models, click on a part number. For technical drawings and 3-D models, click on a part number.


Lg. Threading Min.
Thread Lg. Head
Wd. Head
Ht. Hole
Dia. Tensile
Strength, psi Specifications Met Pkg.
Qty. Pkg. Each



Zinc-Plated Grade 5 Steel



1/4"-20

1/2" Fully Threaded __ 7/16" 11/64" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A537 $11.01 8860K14 $6.10
5/8" Fully Threaded __ 7/16" 11/64" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A539 11.24 8860K14 6.10
3/4" Fully Threaded __ 7/16" 11/64" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A540 11.24 8860K14 6.10
1" Fully Threaded __ 7/16" 11/64" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A542 11.75 8860K14 6.10


5/16"-18

3/4" Fully Threaded __ 1/2" 7/32" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A581 13.16 8860K14 6.10
7/8" Fully Threaded __ 1/2" 7/32" 0.063" 120,000 ASME B18.2.1, SAE J429 10 90124A582 13.26 8860K14 6.10
1" Fully Threaded __ 1/2" 7/32" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A583 7.28 8860K14 6.10
1 1/2" Partially Threaded 7/8" 1/2" 7/32" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A587 8.42 8860K14 6.10


3/8"-16

3/4" Fully Threaded __ 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A622 7.28 8860K14 6.10
1" Fully Threaded __ 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A624 7.70 8860K14 6.10
1 1/4" Fully Threaded __ 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A626 8.35 8860K14 6.10
1 1/2" Partially Threaded 1" 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A628 9.00 8860K14 6.10
2" Partially Threaded 1" 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A632 10.03 8860K14 6.10
3" Partially Threaded 1" 9/16" 1/4" 0.063" 120,000 ASME B18.2.1, SAE J429 5 90124A636 11.08 8860K14 6.10


1/2"-13

3/4" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 5 90124A710 11.71 8860K16 6.51
1" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 5 90124A712 12.13 8860K16 6.51
1 1/4" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 5 90124A714 12.64 8860K16 6.51
1 1/2" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 5 90124A716 13.29 8860K16 6.51
1 3/4" Fully Threaded __ 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 1 90124A718 2.89 8860K16 6.51
2" Partially Threaded 1 1/4" 3/4" 11/32" 0.109" 120,000 ASME B18.2.1, SAE J429 1 90124A720 3.06 8860K16 6.51


5/8"-11

1 1/2" Fully Threaded __ 15/16" 27/64" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A798 4.43 8860K21 11.98
1 3/4" Fully Threaded __ 15/16" 27/64" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A800 4.61 8860K21 11.98
2" Fully Threaded __ 15/16" 27/64" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A802 4.78 8860K21 11.98
2 1/2" Partially Threaded 1 1/2" 15/16" 27/64" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A804 5.17 8860K21 11.98


3/4"-10

2" Fully Threaded __ 1 1/8" 1/2" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A843 6.58 8860K21 11.98
2 1/4" Fully Threaded __ 1 1/8" 1/2" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A844 7.04 8860K21 11.98
3" Partially Threaded 1 3/4" 1 1/8" 1/2" 0.156" 120,000 ASME B18.2.1, SAE J429 1 90124A847 7.60 8860K21 11.98

sammy,
ok, I got it. alright, what were you talking about? :lol:
these are way over what I can understand sammy :lol:

unclebilly,
the drill works right, clockwise . The bit is not sharpened . I got it new from homedepot and just use it as is.

Thanks everyone.

In my typically long-winded and complicated way I was just showing that fasteners with holes already drilled in the heads for locking wire are easily available and relatively cheep.

if that was what you were going for ...............

Actually, I am looking for a hole drill on each end, and no thread. So, look like I will have to drill, if I can/decide to do it.
Thanks Sammy

No thread? Do you mean that you need something like a hitch pin and not a bolt?

Do you have a picture of what you were trying to find?

Yeah something like a clevis pin with hole on both ends. I said bolt because I planned to get a long SS bolt and cut off the threaded end.

What are you trying to do with this thing? Got a picture, or a drawing of the design?

As I and others have mentioned, there is almost certainly a commercially available offering to suit your needs (and save you the time/aggravation of a DIY attempt).
From your revised description it sounds like you need a headless, double-ended clevis pin (AKA hydraulic cylinder pin).

SmileWavy

wow, "double-ended clevis pin (AKA hydraulic cylinder pin". This is what I need... just need to look for the right size.
Thanks Eric.
Thanks guys.

Thanks guys,
I finally got the SS clevis pin and drill some holes with my hand drill. Lot of work. Yes, some of you were right. It doesn't worth the effort.
Thanks again.