SWB_ShoulderBoltSet_04_800x600.jpg 68RearShoulderBeltBolts,Polished_04_800x600.jpg
PET -67 911 Fig 8/12-00, #16 644.803.121.00 Retaining pin (Collar) Qty: 2
Material: Aluminum, 6061
Finish: Anodized, Type II, Clear
Weight: 23.21 grams

The fasteners are all stainless steel:
PET -67 SWB 911 Fig 8/12-00, #17 900.142.002.01 Lock ring, M08 DIN 7980 Qty: 2
PET -67 SWB 911 Fig 8/12-00, #18 900.142.004.01 Spring ring, M12 DIN 7980 bost. Qty: 2
PET -67 SWB 911 Fig 8/12-00, #19 900.119.007.02 Pan-head screw, M08x45 DIN 6912 Qty: 2

The price is $40.28 per set.
USPS flat rate shipping in the US is $5.25		 PET 68 911 Fig 8/12, #11 901.803.123.20 Shouldered bolt Qty: 2.

It was instituted as a running change for the following chassis numbers:
30 8091-on 911 Coupé, 911 S Coupé
35 5463-on 912 Coupé, Porsche
46 2711-on 912 Coupé, Karmann
50 0465-on 911 Targa, 911 S Targa
55 0326-on 912 Targa

Material: Titanium, Gr 5 (6AL-4V)
Thread: 7/16–20 UNF 2A
Finish: Choice of machined, glass bead blasted or hand polished surfaces.
Weight: 34.37 grams

The price is $49.46 per set.
USPS flat rate shipping in the US is $5.25