| DRYWALL SCREWS |
 |
| head: bugle/pan/wafer |
| thread: fine/coarse |
| recess: phillips |
| coating:phosphate/zinc |
|
| |
|
| CHIPBOARD SCREWS |
 |
| head: flat/pan |
| thread: CB thread |
| recess: phillips/torx/pozi |
| coating: zinc |
|
| |
|
| CONCRETE SCREWS |
 |
| head: flat/hex washer |
| thread: hi-low |
| recess: phillips/pozi/torx |
| coating: zinc |
|
| |
|
| SELF DRILLING SCREWS |
 |
| head: bugle/flat/pan/hex washer |
| thread: AK/BK/CK/SK/CBK |
| recess: phillips/torx/pozi/square |
| coating: zinc/phosphate |
|
| |
|
| DECKING SCREWS |
|
| head: flat/bugle |
| thread: partial thread |
| recess: torx/pozi/phillips |
| coating: zinc |
|
| |
|
| SELF TAPPING SCREWS |
 |
| head: pan/hex/flat |
| thread: AB/B/BP |
| recess: phillips/torx/pozi |
| coating: zinc |
|
| |
|
| WOOD SCREWS |
 |
| head: flat/oval/pan/hex |
| thread: single lead/double lead |
| recess: phillips/torx/slotted |
| coating: zinc |
|
| |
|
| ROOFING SCREWS |
 |
| head: hex washer with EPDM |
| point: sharp/drilling |
| thread: full/partial |
| coating: zinc/HDG |
|
| |
|
| COLLATED SCREWS |
 |
| head: flat/bugle |
| thread: all |
| recess: phillips/torx/pozi |
| coating: zinc/phosphate |
|
| |
|
|
| |
|
| |
|
WhatsApp: spartnails 
skype: massonweng 
wechat: xiaohongma843553 
QQ: 1337870731