3/16" shank, 5/16" hex head. (patented head style countersinks itself during installation)
No pre-drilling necessary as these have self feeding tips. 
Specially coated to install much faster and easier than lags or spikes.  
Box of 250 with free hex head driver bit. 
Screw has 2" of thread at tip with 1/4" major diameter.
Use an OlyLog Screw that is 2 inches longer than your log stack height,  (e.g. us a 10" size for 8" diameter log). 

Installation torque 62 inch pounds
Pull-out resistance 2,000 lbs
Ultimate Shear 6,018 lbs. (104,000 psi)

2-1/2"

4"

6"

8"

9"

10"

14"

16"

Similar to the Oly log screws with larger 15/64" shank and larger 5/16" hex head.
Made of heat treated steel for increased strength and drivability.
Coated for corrosion resistance.
Gimlet point for fast drilling. 
These come with 3" of thread at the tip. (threaded area has 5/16" of major diameter). 

Best to install using high torque, low RPM 1/2" electric drill. 
To allow for settling, sink head of screw a minimum of 1/4" below surface of log. 
Use with larger diameter Milled log and Handcrafted logs and locations that may need additional seismic or wind engineering. 

Ultimate Tensile Strength.   Avg. 4612 lbs.
Ultimate Shear Strength      Avg. 7054 lbs.
Torque Test                       Avg. 263 lbs.
Pull Out Strength, (Spruce) Avg. 2503 lbs.

Additional information and copies of testing data are available.

7"

9"

11"

12"

13"

15"

Used to install stress skin panels on roof systems and timber frame wall infill using rigid foam insulation board. 
Self drilling in many applications.  
Spider drive (8 point driver),  oversize "pancake" head eliminates the need for a washer.
3/16" shank diameter.
Heat treated steel.
Ultra coated for corrosion resistance.
2" of thread at the tip.
Gimlet point for fast drilling.
Free spider drive bits in each box.

Note: It's tough to find an 8 point "Spider" driver at the local hardware store. If you're ordering less than box quantities make sure you add a couple to your order.

8 point bit for use with the panel fasteners listed below

Full boxes have drivers included.

4" panel fastener

4 1/2" panel fastener

5" panel fastener

5 1/2" panel fastener

6" panel fastener

6 1/2" panel fastener

7" panel fastener

7 1/2" panel fastener

8" panel fastener

8 1/2" panel fastener

9" panel fastener

9 1/2" panel fastener

10" panel fastener

11" panel fastener

12" panel fastener

14" panel fastener

16" panel fastener

18" panel fastener

Wooden Pegs
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These pegs are made of air-dried oak (red and white), or ash. 
Used by Timber Framers for joining the pieces of their frames together, by log builders in building traditional log trusses and to hold one log to another in a stack, and in kit log construction they are sometimes used at the point where two logs are spliced together to form a longer run. 
Wooden pegs should be stored in a cool dry place as they can shrink or swell depending upon the humidity in your area. 
Also, drill bits can vary in size. Therefore, some timber framers have an assortment of bits. They drill test holes before using the pegs so they can match the bit to the pegs on hand. 
If you're working with hard woods, such as White Oak or occasionally Douglas Fir, many builders prefer to use a tapered peg.
Pegs are coated with wax (e.g. put into a large tumbler with several blocks of wax and slow tumbled until they're totally coated with a light coating of wax. It will look slightly shiny).

Available profiles:

• Straight (which has a slight chamfer on one end...turned approximately 1/64" oversize)
• Tapered, (1/64” over diameter at one end to 1/64” under at the other end. The 1/64 oversize is   consistent for approximately 1" then it starts to taper)
• Double Chamfered (looks like the straight peg except it has the chamfer on both ends

Note: 
White Oak pegs generally have a brownish/white color, Red Oak more of a reddish tone, Ash is the whitest of the batch.

Straight        $1.12

Straight        $1.05

Straight        $.93

Straight        $.83
Chamfered    $.89
Tapered        $.90

For more than one type simply order again.

Straight      $.71
Chamfered $.77

For more than one type simply order again.

Straight       $.60
Chamfered   $.66

For more than one type simply order again.

Straight       $.83
Chamfered   $.89

Straight       $.71
Chamfered   $.77

Straight        $.64